Title 24 · California Energy Code

Who must perform acceptance testing and what are CMATT requirements for HVAC acceptance?

Q: Who exactly is a CMATT and how do I verify one?

A CMATT is a Certified Mechanical Acceptance Test Technician. Verify by requesting the CMATT’s certification identification number and confirming it was issued by an approved Acceptance Test Technician Certification Provider; include that ID on the Certificate of Acceptance as required.

Q: What if the CMATT is employed by the installing contractor?

If the CMATT is an employee, the employer must be a Certified Mechanical Acceptance Test Employer . The Code explicitly makes the CMATT‑employer pairing a requirement for employee CMATTs.

If Section 10‑103.2 requires certification, acceptance testing under §120.5(a) must be done by a certified Mechanical Acceptance Test Technician (CMATT); the CMATT must disclose a valid CMATT ID on the Certificate of Acceptance, and if employed the CMATT must work for a Certified Mechanical Acceptance Test Employer.

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Last reviewed: July 6, 2026

What the code requires — 2-4 sentences

Acceptance testing called for by § 120.5(a) must be performed by qualified personnel; when the Part‑1 acceptance‑testing certification trigger in § 10‑103.2 applies, the tests required by § 120.5(a) must be performed by a Certified Mechanical Acceptance Test Technician (CMATT). If the CMATT is an employee, that person must be employed by a Certified Mechanical Acceptance Test Employer. The CMATT must record a valid CMATT certification identification number on the Certificate of Acceptance and complete the Certificate documentation consistent with Section 10‑103(a)4.

The single most important rule: if § 10‑103.2 requires certification for an HVAC acceptance, a CMATT (and, if employed, a CMATT‑employer) must do the acceptance testing and must put the CMATT ID on the Certificate of Acceptance.

Requirements in detail

Who must perform the tests

Defined term: CMATT = Certified Mechanical Acceptance Test Technician. The Energy Code states: when certification is required by § 10‑103.2, the acceptance testing specified by § 120.5(a) "shall be performed by a certified mechanical acceptance test technician (CMATT)."
Employment requirement: if the CMATT is operating as an employee, the CMATT "shall be employed by a Certified Mechanical Acceptance Test Employer."
Identification on paperwork: the CMATT "shall disclose on the Certificate of Acceptance a valid CMATT certification identification number issued by an approved Acceptance Test Technician Certification Provider."
Documentation: the CMATT "shall complete all Certificate of Acceptance documentation in accordance with the applicable requirements in Section 10‑103(a)4."

Roles and signatures (who signs what)

Field technician (the person who performed the testing) signs the Certificate of Acceptance to declare the test results are true and correct; the Mechanical Code Appendix E clarifies that "the field technician who performs the testing shall sign the certificate of acceptance."
Responsible person (installing contractor, RDP, owner’s agent, or person responsible for certification) shall review the test results and sign the Certificate of Acceptance to certify compliance; the responsible person is permitted to perform the field technician’s responsibilities and then sign the field technician declaration on the certificate.

Decision‑relevant dimensions and values (quick reference)

Decision item	Required value / action	Code Reference
Who must perform acceptance testing when § 10‑103.2 applies	CMATT (Certified Mechanical Acceptance Test Technician)	§ 120.5(a); § 10‑103.2
Employer requirement when CMATT is an employee	Employed by a Certified Mechanical Acceptance Test Employer	§ 120.5(a); cross‑ref to § 10‑103.2
Certificate of Acceptance content	CMATT must disclose a valid CMATT certification identification number and complete Certificate per 10‑103(a)4	§ 120.5(a); § 10‑103(a)4 (referenced)
Who signs the Certificate	Field technician signs; responsible person reviews and signs; responsible person may act as field tech and sign that declaration	Mechanical Code Appendix E, Acceptance Process (E804.3.3)
Forms and field checks	Use applicable Certificate of Acceptance form for the system type (MECH forms — e.g., MECH‑5A, MECH‑7A, etc.)	Mechanical Code Appendix E forms and instructions

Test scope tie‑ins

The CMATT requirement is triggered for the testing required by § 120.5(a) — acceptance procedures for HVAC controls and equipment listed in Part 6 (examples in the Code and Reference NA7 test procedures). The Energy Code references the tests to specific NA7 procedures and other acceptance requirements (e.g., supply fan VAV, demand control ventilation, FDD, etc.).

Exceptions & special cases

Responsible person performing the work: The Mechanical Code Appendix E allows the responsible person (installing contractor, registered design professional, owner’s agent, or the person responsible for certification on the certificate) to perform the field‑technician duties and then sign the field‑technician declaration on the Certificate of Acceptance. That means the person who takes responsibility for the certification can also perform the functional testing and sign, but they still must follow the certificate completion and truth‑of‑results requirements.
Applicability to multifamily: the Energy Code specifically applies the CMATT requirement to certain multifamily acceptance tests (e.g., central ventilation duct leakage and heat/energy recovery system testing) when § 10‑103.2 certification is required. See Reference NA7 requirements and § 160.3(d) cross‑references.
If the CMATT operates as an independent contractor (not an employee), the employer‑certification requirement for a CMATT‑employer does not apply — the CMATT still must be a certified technician and provide their certification ID on the Certificate. The Code text distinguishes the employee/employer pairing explicitly.

Common mistakes

Not using a certified technician when § 10‑103.2 applies: owners/contractors sometimes assume any experienced field tech can sign certificates; the Code requires a CMATT when § 10‑103.2 is triggered.
Missing the CMATT ID on the Certificate of Acceptance: the CMATT must disclose a valid certification identification number on the Certificate; omission can cause nonacceptance of the paperwork.
Failing to use the correct Certificate of Acceptance form or complete Section 10‑103(a)4 documentation: the CMATT must complete the required Certificate fields; incomplete forms are a frequent cause of rejected acceptance documentation.
Confusing the field technician and responsible person roles: while the responsible person may perform field‑tech duties and sign both declarations, the Mechanical Code requires the field‑technician declaration to be signed by the person who actually performed the testing (or by the responsible person if they performed it). Keep clear records of who performed each step.

Worked example — concrete scenario with numbers

Scenario: A 4‑story office building has three rooftop air‑handling units (AHU‑A, AHU‑B, AHU‑C). Each AHU serves a separate floor and each AHU is 12,000 cfm. The project’s compliance documentation triggers acceptance testing under § 120.5(a) and the enforcement agency requires Part‑1 certification under § 10‑103.2.

Steps to comply:

Hire a CMATT who is certified by an approved Acceptance Test Technician Certification Provider. The CMATT must have a valid certification ID.
If the CMATT is an employee, confirm the employer is a Certified Mechanical Acceptance Test Employer; if the CMATT is an independent contractor, employer certification is not the employee case.
The CMATT performs acceptance testing for each AHU (three tests — AHU‑A, AHU‑B, AHU‑C), completes the applicable MECH Certificate of Acceptance form(s) (one certificate per system as required), and records measured values (for example, outdoor air flow, supply fan modulation, discharge static within ±10% tolerance during VAV tests) per the mechanical Appendix E procedures.
On each Certificate of Acceptance the CMATT: (a) signs the field‑technician declaration, (b) enters the CMATT certification identification number, and (c) completes all required fields per 10‑103(a)4. The responsible person reviews and signs the certificate to certify compliance.
Submit the completed, signed Certificates of Acceptance for AHU‑A, AHU‑B, and AHU‑C to the Authority Having Jurisdiction before final occupancy — the Mechanical Code and Energy Code require these documents to be posted or made available with the permit.

Result: Three completed Certificates of Acceptance, each with the CMATT ID and signatures, documenting the acceptance testing for the 12,000‑cfm AHUs — satisfying the CMATT requirement for § 120.5(a) when § 10‑103.2 is invoked.

Related provisions

§ 120.5(a) — acceptance testing requirement that is the subject of the CMATT trigger.
§ 10‑103.2 — Part‑1 section that triggers the CMATT requirement when certification is required (text of § 10‑103.2 was referenced but the full section text was not included in the retrieved files).
Section 10‑103(a)4 — Certificate of Acceptance completion requirements (referenced by § 120.5(a) as the documentation format the CMATT must follow).
Section 160.3(d)1 & 160.3(d)2 — specific acceptance tests for systems (multifamily examples) that reference CMATT when § 10‑103.2 applies.
Mechanical Code Appendix E (Acceptance Process) — describes construction inspection, field technician duties, and signature/declaration requirements (E804.3.1–E804.3.4).

Note about available source text: the Energy Code text clearly links the CMATT requirement to § 10‑103.2 and spells out the CMATT ID and employer requirements; the full verbatim language of § 10‑103.2 itself was referenced but not found verbatim among the uploaded files. Where Appendix E of the Mechanical Code is applicable it clarifies the field‑technician and responsible‑person signature process.

Code references

Grounded in the retrieved California Energy Code — click a citation to read the verbatim passage:

§ 5.17. High relevance — show source text

R. Occupant sensing zone controls shall be tested in accordance with NA7.5.17. 2. Multifamily dwelling units. Before an occupancy permit is granted, the following systems and equipment serving multifamily dwelling units shall be certified as meeting the acceptance requirements for code compliance, as specified by the Reference Nonresidential Appendix NA7. These systems and equipment shall also comply with the applicable requirements of Section 160.3(d)3. A Certificate of Acceptance shall be submitted to the enforcement agency that certifies that the equipment and systems meet the acceptance requirements: A. Multifamily building central ventilation ducts subject to Section 160.2(b)2C shall be leak tested in accordance with NA7.18.3.

B. Multifamily building central ventilation system heat recovery or energy recovery systems in multifamily buildings with four or more habitable stories shall be tested in accordance with NA7.18.4.

When certification is required by Title 24, Part 1, Section 10-103.2, the acceptance testing specified by Section 160.3(d)1 and 2 shall be performed by a Certified Mechanical Acceptance Test Technician (CMATT). If the CMATT is operating as an employee, the CMATT shall be employed by a Certified Mechanical Acceptance Test Employer. The CMATT shall disclose on the Certificate of Acceptance a valid CMATT certification identification number issued by an approved Acceptance Test Technician Certification Provider. The CMATT shall complete all Certificate of Acceptance documentation in accordance with the applicable requirements in Section 10-103(a)4.

TABLE 160.3-A—RETURN DUCT SIZING FOR SINGLE RETURN DUCT SYSTEMS	Col2	Col3
Return duct length shall not exceed 30 feet and shall contain no more than 180 degrees of bend. If the total bending exceeds 90 degrees, one bend shall be a metal elbow. Return grille devices shall be labeled in accordance with the requirements in Section 160.2(b)1Biv to disclose the grille's design airflow rate and a maximum allowable clean-filter pressure drop of 25 Pa (0.1 inches water) for the air filter when tested using ASHRAE Standard 52.2, or as rated in accordance with AHRI Standard 680 for the design airflow rate for the return grille.	Return duct length shall not exceed 30 feet and shall contain no more than 180 degrees of bend. If the total bending exceeds 90 degrees, one bend shall be a metal elbow. Return grille devices shall be labeled in accordance with the requirements in Section 160.2(b)1Biv to disclose the grille's design airflow rate and a maximum allowable clean-filter pressure drop of 25 Pa (0.1 inches water) for the air filter when tested using ASHRAE Standard 52.2, or as rated in accordance with AHRI Standard 680 for the design airflow rate for the return grille.	Return duct length shall not exceed 30 feet and shall contain no more than 180 degrees of bend. If the total bending exceeds 90 degrees, one bend shall be a metal elbow. Return grille devices shall be labeled in accordance with the requirements in Section 160.2(b)1Biv to disclose the grille's design airflow rate and a maximum allowable clean-filter pressure drop of 25 Pa (0.1 inches water) for the air filter when tested using ASHRAE Standard 52.2, or as rated in accordance with AHRI Standard 680 for the design airflow rate for the return grille.

§ 5.6. High relevance — show source text
1. Supply fan variable flow controls shall be tested in accordance with NA7.5.6.
2. Hydronic system variable flow controls shall be tested in accordance with NA7.5.7 and NA7.5.9.
3. Boiler or chillers that require isolation controls as specified by Section 140.4(k)2 or 140.4(k)3 shall be tested in accordance with NA7.5.7.
4. Hydronic systems with supply water temperature reset controls shall be tested in accordance with NA7.5.8.
5. Automatic demand shed controls shall be tested in accordance with NA7.5.10.
6. Fault Detection and Diagnostics (FDD) for Packaged Direct-Expansion Units shall be tested in accordance with NA7.5.11.
7. Automatic fault detection and diagnostics (FDD) for air handling units and zone terminal units shall be tested in accordance with NA7.5.12.
8. Distributed Energy Storage DX AC Systems shall be tested in accordance with NA7.5.13.
9. Thermal Energy Storage (TES) Systems shall be tested in accordance with NA7.5.14.
10. Supply air temperature reset controls shall be tested in accordance with NA7.5.15.
11. Water-cooled chillers served by cooling towers with condenser water reset controls shall be tested in accordance with NA7.5.16.
12. When an energy management control system is installed, it shall functionally meet all of the applicable requirements of Part 6.
13. Occupant sensing zone controls shall be tested in accordance with NA7.5.17.
14. Conductivity controls and overflow alarms for open and closed-circuit cooling towers shall be tested according to NA7.5.18.
(b) When certification is required by Title 24, Part 1, Section 10-103.2, the acceptance testing specified by Section 120.5(a) shall be performed by a certified mechanical acceptance test technician (CMATT). If the CMATT is operating as an employee, the CMATT shall

2025 CALIFORNIA ENERGY CODE 79

on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

NONRESIDENTIAL, HOTEL/MOTEL OCCUPANCIES, AND COVERED PROCESSES—MANDATORY REQUIREMENTS

be employed by a certified mechanical acceptance test employer. The CMATT shall disclose on the certificate of acceptance a valid CMATT certification identification number issued by an approved acceptance test technician certification provider. The CMATT shall complete all certificate of acceptance documentation in accordance with the applicable requirements in Section 10-103(a)4.

Note: Authority cited: Sections 25213, 25218, 25218.5, 25402 and 25402.1, Public Resources Code. Reference: Sections 25007, 25008, 25218.5, 25310, 25402(a)-(b), 25402.1, 25402.4, 25402.5, 25402.8 and 25943, Public Resources Code .

SECTION 120.6—MANDATORY REQUIREMENTS FOR COVERED PROCESSES

Nonresidential and hotel/motel buildings shall comply with the applicable requirements of Sections 120.6(a) through 120.6(k), and the applicable requirements of Sections 110.2(a) and 120.3.

(a) Mandatory requirements for refrigerated warehouses.
§ 160.2 High relevance — show source text
E. Demand control ventilation systems required by Section 160.2(c)3 shall be tested in accordance with NA7.5.5. F. Supply fan variable flow controls shall be tested in accordance with NA7.5.6. G. Hydronic system variable flow controls shall be tested in accordance with NA7.5.7 and NA7.5.9. H. Boilers or chillers that require isolation controls as specified by Section 170.2(c)4Iii or 170.2(c)4Iiii shall be tested in accordance with NA7.5.7.

I. Hydronic systems with supply water temperature reset controls shall be tested in accordance with NA7.5.8.

J. Automatic demand shed controls shall be tested in accordance with NA7.5.10.

K. Fault detection and diagnostics (FDD) for packaged direct expansion units shall be tested in accordance with NA7.5.11. L. Automatic fault detection and diagnostics (FDD) for air handling units and zone terminal units shall be tested in accordance with NA7.5.12.

M. Distributed energy storage DX AC systems shall be tested in accordance with NA7.5.13. N. Thermal energy storage (TES) systems shall be tested in accordance with NA7.5.14. O. Supply air temperature reset controls shall be tested in accordance with NA7.5.15. P. Water-cooled chillers served by cooling towers with condenser water reset controls shall be tested in accordance with NA7.5.16.

Q. When an energy management control system is installed, it shall functionally meet all of the applicable requirements of Part 6.

R. Occupant sensing zone controls shall be tested in accordance with NA7.5.17. 2. Multifamily dwelling units. Before an occupancy permit is granted, the following systems and equipment serving multifamily dwelling units shall be certified as meeting the acceptance requirements for code compliance, as specified by the Reference Nonresidential Appendix NA7. These systems and equipment shall also comply with the applicable requirements of Section 160.3(d)3. A Certificate of Acceptance shall be submitted to the enforcement agency that certifies that the equipment and systems meet the acceptance requirements: A. Multifamily building central ventilation ducts subject to Section 160.2(b)2C shall be leak tested in accordance with NA7.18.3.

B. Multifamily building central ventilation system heat recovery or energy recovery systems in multifamily buildings with four or more habitable stories shall be tested in accordance with NA7.18.4.
1. When certification is required by Title 24, Part 1, Section 10-103.2, the acceptance testing specified by Section 160.3(d)1 and 2 shall be performed by a Certified Mechanical Acceptance Test Technician (CMATT). If the CMATT is operating as an employee, the CMATT shall be employed by a Certified Mechanical Acceptance Test Employer. The CMATT shall disclose on the Certificate of Acceptance a valid CMATT certification identification number issued by an approved Acceptance Test Technician Certification Provider. The CMATT shall complete all Certificate of Acceptance documentation in accordance with the applicable requirements in Section 10-103(a)4.
TABLE 160.3-A—RETURN DUCT SIZING FOR SINGLE RETURN DUCT SYSTEMS Col2 Col3

Return duct length shall not exceed 30 feet and shall contain no more than 180 degrees of bend.

TABLE 160.3-A—RETURN DUCT SIZING FOR SINGLE RETURN DUCT SYSTEMS	Col2	Col3
Return duct length shall not exceed 30 feet and shall contain no more than 180 degrees of bend.

§ 10-103.2 High relevance — show source text

(b) When certification is required by Title 24, Part 1, Section 10-103.2, the acceptance testing specified by Section 120.5(a) shall be performed by a certified mechanical acceptance test technician (CMATT). If the CMATT is operating as an employee, the CMATT shall

2025 CALIFORNIA ENERGY CODE 79

on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

NONRESIDENTIAL, HOTEL/MOTEL OCCUPANCIES, AND COVERED PROCESSES—MANDATORY REQUIREMENTS

be employed by a certified mechanical acceptance test employer. The CMATT shall disclose on the certificate of acceptance a valid CMATT certification identification number issued by an approved acceptance test technician certification provider. The CMATT shall complete all certificate of acceptance documentation in accordance with the applicable requirements in Section 10-103(a)4.

Note: Authority cited: Sections 25213, 25218, 25218.5, 25402 and 25402.1, Public Resources Code. Reference: Sections 25007, 25008, 25218.5, 25310, 25402(a)-(b), 25402.1, 25402.4, 25402.5, 25402.8 and 25943, Public Resources Code .

SECTION 120.6—MANDATORY REQUIREMENTS FOR COVERED PROCESSES

Nonresidential and hotel/motel buildings shall comply with the applicable requirements of Sections 120.6(a) through 120.6(k), and the applicable requirements of Sections 110.2(a) and 120.3.

(a) Mandatory requirements for refrigerated warehouses.

Refrigerated warehouses that are greater than or equal to 3,000 square feet and refrigerated spaces with a sum total of 3,000 square feet or more that are served by the same refrigeration system shall meet the requirements of Section 120.6(a).

Refrigerated spaces that are less than 3,000 square feet shall meet the requirements of the Appliance Efficiency Regulations for walk-in coolers or freezers contained in the Appliance Efficiency Regulations (California Code of Regulations, Title 20, Sections 1601 through 1608).

Insulation requirements. Exterior surfaces of refrigerated warehouses shall be insulated at least to the R -values in Table 120.6-A-1.

TABLE 120.6-A-1—REFRIGERATED WAREHOUSE INSULATION	Col2	Col3
SPACE	SURFACE	MNIMUMR-VALUE (ºF·hr·sf/Btu)
Freezers	Roof/ceiling	R-40
Freezers	Wall	R-36
Freezers	Floor	R-35
Freezers	Floor with all heating from productive refrigeration capacity1	R-20
Coolers	Roof/ceiling	R-28
Coolers	Wall	R-28
1. All underslab heating is provided by a heat exchanger that provides refrigerant subcooling or other means that result in productive refrigeration capacity on the associated refrigerated system.	1. All underslab heating is provided by a heat exchanger that provides refrigerant subcooling or other means that result in productive refrigeration capacity on the associated refrigerated system.	1. All underslab heating is provided by a heat exchanger that provides refrigerant subcooling or other means that result in productive refrigeration capacity on the associated refrigerated system.

**Underslab heating.

§ 804.3.2 High relevance — show source text
This is typically done prior to signing a certificate of compliance. E 804.3.2 Construction Inspection. The installing contractor, registered design professional of record, owner’s agent, or the person responsible for certification of the acceptance testing on the certificate of acceptance (responsible person) shall perform a construction inspection prior to testing to ensure that the equipment that is installed is capable of complying with the requirements of this appendix and is calibrated. The installation of associated systems and equipment necessary for proper system operation is required to be completed prior to the testing.

2025 CALIFORNIA MECHANICAL CODE 481

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APPENDIX E

E 804.3.3 Acceptance Testing. One or more field technicians shall perform the acceptance testing; identify performance deficiencies; ensure that they are corrected; and where necessary, repeat the acceptance procedures until the specified systems and equipment are performing in accordance with the acceptance requirements. The field technician who performs the testing shall sign the certificate of acceptance to certify the information has been provided to document the results of the acceptance procedures is true and correct.

The responsible person shall review the test results from the acceptance requirement procedures provided by the field technician and sign the certificate of acceptance to certify compliance with the acceptance requirements. The responsible person shall be permitted to perform the field technician’s responsibilities, and shall then sign the field technician declaration on the certificate of acceptance to certify that the information on the form is true and correct.

E 804.3.4 Certificate of Occupancy. The Authority Having Jurisdiction shall not issue the final certificate of occupancy until required certificates of acceptance are submitted. Copies of completed, signed certificates of acceptance are required to be posted, or made available with the permit(s), and shall be made available to the Authority Having Jurisdiction.

E 805.0 HVAC System Tests.

E 805.1 Variable Air Volume Systems (Form MECH- 2A). This test ensures that adequate outdoor air ventilation is provided through the variable air volume air handling unit at two representative operating conditions. The test consists of measuring outdoor air values at maximum flow and at or near minimum flow. The test verifies that the minimum volume of outdoor air is introduced to the air handling unit where the system is in occupied mode at these two conditions of supply airflow. This test shall be performed in conjunction with supply fan variable flow controls test procedures to reduce the overall system testing time as both tests use the same two conditions of airflow for their measurements.

E 805.1.1 Test Procedure. The procedure for performing a functional test for variable air volume systems shall be in accordance with Section E 805.1.1.1 and Sec tion E 805.1.1.2.

E 805.1.1.1 Construction Inspection. Prior to functional testing, verify and document that the system controlling outside airflow is calibrated either in the field or factory.

E 805.1.1.2 Functional Testing. The functional testing shall be in accordance with the following steps:

Step 1: Where the system has an outdoor air economizer, force the economizer high limit to disable economizer control (e.g., for a fixed dry-bulb high limit, lower the setpoint below the current outdoor air temperature).

Step 2: Adjust supply airflow to either the sum of the minimum zone airflows or 30 percent of the total design airflow. Verify and document the following:
§ 140.9 High relevance — show source text
INDEX

140.9(b)3, 140.9(c), 160.3(d)1, 160.3(d)2, 160.3(d)3, 160.5(e)1, 3 Compliance 10-103(a), 120.8(d), 150.1(b)3, 170.1(d) Installation 10-103(a)3, 150.1(b)3, 150.1(c)7, 150.2(b)1F Verification 10-103(a)5, 150.1(b)3 Certification 110.0(B), 110.2, 110.3(A), 110.4(a), 110.6(a), 110.8(a), 110.8(g), 110.9(c), 110,11, 120.5(b), 130.4(b), 130.4(c), 140.9(a)4, 150.0(n)3, 160.3(d)3, 160.4(c), 160.5(e) Certification Identification Number 10-103(C)3G, 120.5(B), 130.4(c), 160.3(d)3, 160.5(e) Certification Requirements 110.0(B), 110.6(a)1, 110.8(g)1 Certified 110.6(a)6, 110.8(i)1, 120.5(a) Equipment 110.4(a)1, 150.0(h), 150.0(p)1A Lighting Controls Acceptance Test Employer 130.4(c), 160.5(e) Mechanical Acceptance Test Employer 120.5(b), 160.3(d)3 Mechanical Acceptance Test Technician (CMATT) 120.5(b), 160.3(d)3 CFA and Dwelling Unit Adjustment Factors Table 150.1-C, Table 170.2-T CFM Per Square Foot 110.6(A)1, 120.1(D)3, 120.6(c)5, 140.3(a)9, 140.4(e)1, 141.0(b)2Q, 150.1(c)12A, Table 160.2-B, Table 160.2-C, 170.2(c)4N CFM Per Ton 150.0(M)13, 150.1(C)7, 150.2(B)1F, 160.3(b)5L, 170.2(c)3B, 180.2(b)2A Chalk Board 140.6(b)4 Chilled Water piping 120.3(b)2, 160.3(c)1C, 160.4(f)2B Water plant Table 120.2-A, 140.4(h)5, 140.4(j), Table 160.3-C, 170.2(c)4F Water system 120.6(h), 140.4(k)2, 140.4(m), 170.2(c)4C, I, K Water system cooling capacity Table 140.4-E, Table 170.2-E-2 Chiller 10-103(c)3B, 110.2(a), Table 120.2-A, 120.5(a)8, 16, 120.6(b)2A, Table 130.5-B, 140.
§ 120.5 High relevance — show source text
3(d)3 Mechanical Acceptance Test Technician (CMATT) 120.5(b), 160.3(d)3 CFA and Dwelling Unit Adjustment Factors Table 150.1-C, Table 170.2-T CFM Per Square Foot 110.6(A)1, 120.1(D)3, 120.6(c)5, 140.3(a)9, 140.4(e)1, 141.0(b)2Q, 150.1(c)12A, Table 160.2-B, Table 160.2-C, 170.2(c)4N CFM Per Ton 150.0(M)13, 150.1(C)7, 150.2(B)1F, 160.3(b)5L, 170.2(c)3B, 180.2(b)2A Chalk Board 140.6(b)4 Chilled Water piping 120.3(b)2, 160.3(c)1C, 160.4(f)2B Water plant Table 120.2-A, 140.4(h)5, 140.4(j), Table 160.3-C, 170.2(c)4F Water system 120.6(h), 140.4(k)2, 140.4(m), 170.2(c)4C, I, K Water system cooling capacity Table 140.4-E, Table 170.2-E-2 Chiller 10-103(c)3B, 110.2(a), Table 120.2-A, 120.5(a)8, 16, 120.6(b)2A, Table 130.5-B, 140.4(a), 140.4(i-k), 160.3(d)1H, P, Table 160.3-C, Table 160.6-B, 170.2(c)1, 170.2(c)3, 170.2(c)4G, H, I Chiller Isolation 10-103.2(c), 140.4(k)2, 170.2(c)4I Chimney 110.10(b)3 Church 120.2(e), 130.1(c)4, 140.3(c) Circuit Breaker 110.9(c), 110.10(e), 150.0(n), 150.0(t-v), 160.4(a)1B, 160.9(a-c) Circuit Controls 130.5(d), 141.0(b)2P, 160.6(d), 180.2(b)4B Circulating Air 140.4(c), 170.2(c)4A Circulating Pump 110.2(e)1, 110.3(c)2 Circulation Control 110.4(b) Cladding Material 150.2(b)1I Class 1 Air 120.1(g), 160.2(c)8 Class 2 Air 120.1(g), 160.2(c)8 Class 3 Air 120.1(g), 160.2(C)8 Class 4 Air 120.1(g), 160.2(c)8

Classification of Dwelling Unit High Luminous Efficacy Light Sources Table 160.5-A Clean-Filter Pressure Drop 150.
§ 804.3 High relevance — show source text
(3) Duct leakage on a subset of small single-zone systems depending on the ductwork location (Form MECH-4A).

(4) Air economizer controls for economizers that are not factory installed and tested (Form MECH-5A).

(5) Demand-controlled ventilation control systems (Form MECH-6A).

(6) Supply fan variable flow controls (Form MECH-7A).

(7) Valve leakage for hydronic variable flow systems and isolation valves on chillers and boilers in plants with more than one chiller or boiler being served by the same primary pumps through a common header (Form MECH8A).

(8) Supply water temperature reset control strategies programmed into the building automation system for water systems (e.g., chilled, hot, or condenser water) (Form MECH-9A).

(9) Hydronic variable flow controls on a water system where the pumps are controlled by variable frequency drives (e.g., chilled and hot water systems; water-loop heat pump systems) (Form MECH-10A).

(10)Automatic demand shed control (Form MECH-11A).

(11)Fault detection and diagnostic for DX units (Form MECH-12A).

(12)Automatic fault detection and diagnostic systems (AFDD) (Form MECH-13A).

(13)Distributed energy storage DEC/DX AC systems (Form MECH-14A).

(14)Thermal energy storage (TES) systems (Form MECH15A). E 804.3 Acceptance Process. The functional testing process shall comply with Section E 804.3.1 through Section E 804.3.4.

E 804.3.1 Plan Review. The installing contractor, registered design professional of record, owner’s agent, or the person responsible for certification of the acceptance testing on the certificate of acceptance (responsible person) shall review the plans and specifications to ensure that they are in accordance with the acceptance requirements. This is typically done prior to signing a certificate of compliance. E 804.3.2 Construction Inspection. The installing contractor, registered design professional of record, owner’s agent, or the person responsible for certification of the acceptance testing on the certificate of acceptance (responsible person) shall perform a construction inspection prior to testing to ensure that the equipment that is installed is capable of complying with the requirements of this appendix and is calibrated. The installation of associated systems and equipment necessary for proper system operation is required to be completed prior to the testing.

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APPENDIX E

E 804.3.3 Acceptance Testing. One or more field technicians shall perform the acceptance testing; identify performance deficiencies; ensure that they are corrected; and where necessary, repeat the acceptance procedures until the specified systems and equipment are performing in accordance with the acceptance requirements. The field technician who performs the testing shall sign the certificate of acceptance to certify the information has been provided to document the results of the acceptance procedures is true and correct.

The responsible person shall review the test results from the acceptance requirement procedures provided by the field technician and sign the certificate of acceptance to certify compliance with the acceptance requirements. The responsible person shall be permitted to perform the field technician’s responsibilities, and shall then sign the field technician declaration on the certificate of acceptance to certify that the information on the form is true and correct.
§ 140.3 High relevance — show source text
A

Above Grade Wall 140.3(a)9, 150.0(c), 160.1(b) Accent Luminaire 140.6(c)3G, 170.2(e)4 Accent, Display and Feature 140.6(b)4 Acceptance Requirements 10-103(a), 100.1(b), 110.6(a)6, 120.5(a), 120.6(a)7, 120.6(b)6, 120.6(c)8, 120.6(e)8, 120.6(f)5, 120.6(g)2, 120.6(i)4, 130.4(a), 140.9(b)3, 140.9(c)3-4, 160.3(d)1-2, 160.5(e)1 Acceptance Test Technician Certification Provider 10-103(a)4B, 10103.1(a), 10-109(i)B, 120.5(b), 130.4(c), 160.3(d)3, 160.5(e)3 Acceptance Testing 10-103(a)4, 10-103.1(a-b), 10-103.1(c)3, 10-103(e), 10-103.2(a-b), 120.5(b), 130.4(c), 141.0(b)2I, 141.0(b)2L, 160.3(d)3, 160.5(e)3, 180.2(4)B2 Actual Outdoor Lighting Power 140.7(a), 170.2(e)6 Addition Or Alteration 120.6(b)1–4, 140.9(b)1–2, 150.2(c), 180.4 Additional Credit 141.0(b)3C, 150.2(b)2, 180.2(c)2 Additional Fan Power Allowances 141.0(b)2C, Table 141.0-D Additional Multifamily Lighting Power Allowance for Specific Applications Table 170.2-S Additions 10-103(a)1C, 2A, 3D, 10-103(d)2, 10-106(a), 100.0(e)3, Table 100.0-A, Table 110.2-E, 120.0, Table 120.2-A, 120.6(c), 120.6(e), 130.0(a-b), 140.0, 140.6(a), 140.7(a), 141.0, 141.0(a), 141.1, 141.1(b–c), 150.0,150.1(a–b), 150.2, 150.2(a, c), 160.0, Table 160.3-C, 160.5(b), 170.0(a), 170.2(e)6A, 180.0, 180.1(a–b), 180.4 Adiabatic Gas Cooler 120.6(a)8, 120.6(b)5 Adjusted Indoor Lighting Power 140.6, 140.6(a)2 Adjustment Credits 180.2(b) Adjustment Factor 130.4(a, b, d), 140.6(a)2, 4, 140.6(c)3G, H, Table 140.6-A,

§ 10-103.1 Medium relevance — show source text

When certification is required by Title 24, Part 1, Section 10-103.1, the acceptance testing specified by Section 160.5(e) shall be performed by a Certified Lighting Controls Acceptance Test Technician (CLCATT). If the CLCATT is operating as an employee, the CLCATT shall be employed by a Certified Lighting Controls Acceptance Test Employer. The CLCATT shall disclose on the Certificate of Acceptance a valid CLCATT certification identification number issued by an approved Acceptance Test Technician Certification Provider. The CLCATT shall complete all Certificate of Acceptance documentation in accordance with the applicable requirements in Section 10-103(a)4.

NOTE: Authority: Sections 25213, 25218, 25218.5, 25402 and 25402.1, Public Resources Code . Reference: Sections 25007, 25008, 25218.5, 25310, 25402, 25402.1, 25402.4, 25402.5, 25402.8 and 25943, Public Resources Code .

SECTION 160.6—MANDATORY REQUIREMENTS FOR ELECTRIC POWER DISTRIBUTION SYSTEMS

Multifamily buildings shall comply with the applicable requirements of Sections 160.6(a) through 160.6(e).

(a) Service electrical metering. Each electrical service or feeder that provides power to the common use areas (interior and exterior) shall have a permanently installed metering system that measures electrical energy use in accordance with Table 160.6-A.

Exception to Section 160.6(a): Service or feeder for which the utility company provides a metering system for the multifamily building that indicates instantaneous kW demand and kWh for a utility-defined period.

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MULTIFAMILY BUILDINGS—MANDATORY REQUIREMENTS

TABLE 160.6-A—MINIMUM REQUIREMENTS FOR METERING OR SUBMETERING OF ELECTRICAL LOAD	Col2	Col3	Col4	Col5
METERING FUNCTIONALITY	ELECTRICAL SERVICES1 RATED 50 KVA OR LESS	ELECTRICAL SERVICES1 RATED MORE THAN 50 KVA AND LESS THAN OR EQUAL TO 250 KVA	ELECTRICAL SERVICES1 RATED MORE THAN 250 KVA AND LESS THAN OR EQUAL TO 1000 KVA	ELECTRICAL SERVICES1 RATED MORE THAN 1000 KVA
Instantaneous (at the time) kW demand	Required	Required	Required	Required
Historical peak demand (kW)	Not required	Not required	Required	Required
Tracking kWh for a user- definable period	Required	Required	Required	Required
kWh per rate period	Not required	Not required	Not required	Required
1. “Electrical services” applies to the building service-entrance rating or to the submetering service. For a building with submetering, this applies to the submetering service size to the common use areas.	1. “Electrical services” applies to the building service-entrance rating or to the submetering service.

§ 801.0 Medium relevance — show source text

I am a licensed contractor or registered design professional who is eligible per the requirements of the Authority Having Jurisdiction to take responsibility for the scope of work specified on this document and attest to the declarations in this statement (responsible person).
I certify that the information provided on this form substantiates that the construction/installation identified on this form complies with the acceptance requirements indicated in the plans and specifications approved by the enforcement agency, and conforms to the applicable acceptance requirements and procedures specified in Section E 801.0 through Section E 806.0.
I have confirmed that the Installation Certificate(s) for the construction/installation identified on this form has been completed and is posted or made available with the permit(s) issued for the building.
I will ensure that a completed, signed copy of this Certificate of Acceptance shall be posted, or made available with the building permit(s) issued for the building, and made available to the enforcement agency for all applicable inspections. I understand that a signed copy of this Certificate of Acceptance is required to be included with the documentation the builder

provides to the building owner at occupancy.	Col2	Col3	Col4
Company Name:	Company Name:	Company Name:	Phone:
Responsible Person’s Name:	Responsible Person’s Name:	Responsible Person’s Signature:	Responsible Person’s Signature:
License:	Date Signed:	Position With Company (Title):	Position With Company (Title):

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APPENDIX E

CERTIFICATE OF ACCEPTANCE MECH-5A	Col2
Air Economizer Controls Acceptance (Page 2 of 3)	Air Economizer Controls Acceptance (Page 2 of 3)
Project Name/Address:	Project Name/Address:
System Name or Identification/Tag:	System Location or Area Served:

Intent: Verify that airside economizers function properly.

Construction Inspection

Instrumentation to perform test includes, but not limited to: a. Handheld temperature probes calibration. Date: (must be within last year). b. Multimeter capable of measuring ohms and milliamps.
Test method (check one of the following):  Economizer comes from HVAC system manufacturer installed by and has been factory calibrated and tested. Attach documentation and complete certification statement. No functional testing required.

 Economizer field installed and field tested or factory installed and field tested.

Installation (check all of the following first level boxes).  Economizer lockout setpoint complies with Section E 805.5 through Section E 805.5.2.

 Economizer lockout control sensor is located to prevent false readings.

 System is designed to provide up to 100% outside air without over-pressurizing the building.

 For systems with DDC controls lockout sensor(s) are either factory calibrated or field calibrated.

 For systems with non-DDC controls, manufacturer’s startup and testing procedures have been applied.

A. Functional Testing.	Col2
Step 1: Disable demand control ventilation systems (if applicable).	**Step 1: Disable demand control ventilation systems (if applicable).

§ 1.1.10 Medium relevance — show source text
1.1.10 Availability of Codes. At least one complete copy each of Titles 8, 19, 20, 24, and 25 with all revisions shall be main- tained in the office of the building official responsible for the administration and enforcement of this code. Each state department concerned and each city, county, or city and county shall have an up-to-date copy of the code available for public inspection, see Health and Safety Code Section 18942(e)(1) and (2).

1.1.11 Format. This part fundamentally adopts the Uniform Mechanical Code by reference on a chapter-by-chapter basis. When a specific chapter of the Uniform Mechanical Code is not printed in the code and is marked “Reserved”, such chapter of the Uniform Mechanical Code is not adopted as a portion of this code. When a specific chapter of the Uniform Mechanical Code is marked “Not adopted by the State of California” but appears in the code, it may be available for adoption by local ordinance.

Note: Matrix Adoption Tables at the front of each chapter may aid the code user in determining which chapter or sections within a chapter are applicable to buildings under the authority of a specific state agency, but they are not to be considered regulatory.

1.1.12 Validity. If any chapter, section, subsection, sentence, clause, or phrase of this code is for any reason held to be unconstitutional, contrary to statute, exceeding the authority of the state as stipulated by statutes or otherwise inoperative, such decision shall not affect the validity of the remaining portion of this code.

1.2.0 Building Standards Commission.

1.2.1 BSC. Specific scope of application of the agency responsible for enforcement, the enforcement agency, and the specific authority to adopt and enforce such provisions of this code, unless otherwise stated.

(1) State Buildings for All Occupancies.

Application – State buildings (all occupancies), including buildings constructed by the Trustees of the California State University (CSU) and the Regents of the University of California (UC) where no state agency has the authority to adopt building standards applicable to such buildings.

Enforcing Agency – State or local agency specified by the applicable provisions of law.

Authority Cited – Health and Safety Code Section 18934.5.

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DIVISION I CALIFORNIA ADMINISTRATION

Reference – Health and Safety Code, Division 13, Part 2.5, commencing with Section 18901.

(2) University of California, California State Universities, and California Community Colleges.

Application – Standards for lighting for parking lots and primary campus walkways at the University of Cali- fornia, California State Universities, and California Community Colleges.

Enforcing Agency – State or local agency specified by the applicable provisions of law.

Authority Cited – Government Code Section 14617.

Reference – Government Code Section 14617.

§ 25.4 Medium relevance — show source text

**|Y/N|Y/N|Y/N|

B. Testing Results.	PASS / FAIL	Col3
Step 1: Simulate a high CO2 load (check box complete).
Step 2: Simulate a low CO2 load (check box complete).

For SI units: 1 inch = 25.4 mm

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APPENDIX E

CERTIFICATE OF ACCEPTANCE MECH-6A	Col2
Demand Control Ventilation Systems Acceptance (Page 3 of 3)	Demand Control Ventilation Systems Acceptance (Page 3 of 3)
Project Name/Address:	Project Name/Address:
System Name or Identification/Tag:	System Location or Area Served:

C.	PASS/FAIL Evaluation (check one):
	PASS: AllConstruction Inspection responses are complete andTesting Results responses are “Pass.”
	FAIL: AnyConstruction Inspection responses are incomplete_OR_ there is one or more “Fail” responses inTesting Results section. Provide explanation below. Use and attach additional pages if necessary.

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APPENDIX E

CERTIFICATE OF ACCEPTANCE MECH-7A	Col2
Supply Fan VFD Acceptance (Page 1 of 2)	Supply Fan VFD Acceptance (Page 1 of 2)
Project Name/Address:	Project Name/Address:
System Name or Identification/Tag:	System Location or Area Served:

Enforcement Agency:	Permit Number:
Note: Submit one Certificate of Acceptance for each system that must demonstrate compliance.	Enforcement Agency Use: Checked by/Date

FIELD TECHNICIAN’S DECLARATION STATEMENT

I certify under penalty of perjury the information provided on this form is true and correct.
I am the person who performed the acceptance requirements verification reported on this Certificate of Acceptance (Field Technician).

§ 110.2 Medium relevance — show source text
B Ceiling-Mounted Air Conditioners and Condensing Units Serving Computer Rooms–Minimum Efficiency Requirements Table 110.2-M Cellular Foam Insulation 120.4(F), 150.0(M)9,160.3(b)5I, 160.3(c)2G Cement-Based Roof Coatings 110.8(i)4 Central Boiler 140.4(a), 170.2(c)3A Chiller 140.4(a)2 Forced-air 150.0(h)4, 150.0(m)13, 150.0(o), 150.1(c)10, 160.2(b)2A, 160.3(b)4, 160.3(b)5, 170.2(c)3B Furnace 110.5, 110.5(a) Water heating system 110.10(c), 150.1(c)8, 170.2(d)3 Centrifugal Fan Table 110.2-F, 140.4(h), 170.2(C)4F Centrifugal Water Chilling 110.2(a) Certificate of Acceptance 10-103(a)4, 10-103(b)1B, 10-103.1(c)3, 110.6(a)6, 120.5(a), 120.5(b), 120.6(a)7, 120.6(b)6, 120.6(c)8, 120.6(e)6, 120.6(f), 120.6(g), 120.6(i), 130.4(a), 130.4(c),

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INDEX

140.9(b)3, 140.9(c), 160.3(d)1, 160.3(d)2, 160.3(d)3, 160.5(e)1, 3 Compliance 10-103(a), 120.8(d), 150.1(b)3, 170.1(d) Installation 10-103(a)3, 150.1(b)3, 150.1(c)7, 150.2(b)1F Verification 10-103(a)5, 150.1(b)3 Certification 110.0(B), 110.2, 110.3(A), 110.4(a), 110.6(a), 110.8(a), 110.8(g), 110.9(c), 110,11, 120.5(b), 130.4(b), 130.4(c), 140.9(a)4, 150.0(n)3, 160.3(d)3, 160.4(c), 160.5(e) Certification Identification Number 10-103(C)3G, 120.5(B), 130.4(c), 160.3(d)3, 160.5(e) Certification Requirements 110.0(B), 110.6(a)1, 110.8(g)1 Certified 110.6(a)6, 110.8(i)1, 120.5(a) Equipment 110.4(a)1, 150.0(h), 150.0(p)1A Lighting Controls Acceptance Test Employer 130.4(c), 160.
§ 4.93 Medium relevance — show source text
55|AHRI 550/590| |> 400 and < 600|44i|> 4.93|> 3.96|> 2.97|NAj|AHRI 550/590| |> 400 and < 600|65 i|NAj|NAj|NAj|> 3.9|AHRI 550/590| |> 600|44i|> 4.93|> 3.96|> 2.97|NAj|AHRI 550/590| |> 600|65 i|NAj|NAj|NAj|> 3.9|AHRI 550/590| |a. The size category is the full-load net refrigeration cooling mode capacity, which is the capacity of the evaporator available for cooling of the thermal load external to the chill-
ing package.
b. For air source heat pumps, compliance with both the 47°F and 17°F heating source outdoor air temperature (OAT) rating efficiency is required for heating.
c. Heating full-load rating conditions are at standard rating conditions defined in AHRI 550/590 (I-P), Table 4, includes the impact of defrost for air source heating ratings.
d. For units that operate in both cooling and heating, compliance with both the cooling and heating efficiency is required.
e. For heat recovery heating chilling package applications where there is simultaneous cooling and heating, compliance with the heating performance heat recover COPHR is
only required at one of the four heating AHRI 550/590 (I-P) standard ratings conditions of Low, Medium, Hot-Water 1 or Hot-Water 2. Compliance with the cooling-only perfor-
mance is required as defined in Notes b and c of Table 110.2-I.
f. For applications where the chilling package is installed to operate only in heating, compliance only with the heating performance COPH is required at only one of the heating
AHRI 550/590 (I-P) standard rating conditions of Low, Medium, High, or Boost. Compliance with cooling performance is not required.
g. For heat pump chilling package applications where the cooling capacity is not being used for conditioning, compliance with the heating performance COPH is only required at
one of the heating AHRI 550/590 (I-P) standard rating conditions of Low, Medium, High, or Boost. Compliance with the cooling performance is required as defined in Notes b
and c of Table 110.2-I, except as noted in Note f.
h. Water-to-water heat pumps with a capacity less than 135,000 Btu/h are included in Table 110.2-B, Heat Pumps—Minimum Efficiency Requirements.
i. Source leaving liquid temperature.
1. The cooling evaporator liquid flow rate used for the heating rating for a reverse cycle air-to-water heat pump shall be the flow rate determined during the full load cooling rating.
2. The cooling evaporator liquid flow rate for the simultaneous cooling and heating and heat recovery liquid cooled chilling packages rating shall be the liquid flow rates
from the cooling operation full-load rating.
3. For heating-only fluid-to-fluid chiller packages, the evaporator flow rate obtained with an entering liquid temperature of 54°F and a leaving liquid temperature of 44°F
shall be used.
j. NA means the requirements are not applicable.|a. The size category is the full-load net refrigeration cooling mode capacity, which is the capacity of the evaporator available for cooling of the thermal load external to the chill-
ing package.
b.

§ 1.1 Medium relevance — show source text

Adopting agency	BSC	BSC- CG	SFM	HCD	Col6	Col7	DSA	Col9	Col10	OSHPD	Col12	Col13	Col14	Col15	Col16	Col17	BSCC	DPH	AGR	DWR	CEC	CA	SL	SLC
Adopting agency	BSC	BSC- CG	SFM	1	2	1/AC	AC	SS	SS/CC	1	1R	2	3	4	5	6	6	6	6	6	6	6	6	6
Adopt entire chapter	X		X	X	X								X			X
Adopt entire chapter as amended (amended sections listed below)								X	X	X	X	X		X	X
Adopt only those sections that are listed below
Chapter / Section
2401.1.1								X	X	X	X	X		X	X
2401.1.2								X	X	X	X	X		X	X
2403.2.1								X	X	X	X	X		X	X
Table 2403.2.1								X	X	X	X	X		X	X
2410								X	X	X	X	X		X	X
2410.1, Exception												X
2410.1.2, Exception								X	X
2411										X	X	X		X	X

The state agency does not adopt sections identified with the following symbol: The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.

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User notes:

§ 10-109 Medium relevance — show source text
(b) Performance approach. A building complies with the performance approach if the energy consumption calculated for the proposed design building is no greater than the energy budget calculated for the standard design building using Commission-certified compliance software as specified by Sections 10-109(c) and 10-116.
1. Energy budget. The energy budget is expressed in terms of source energy and long-term system cost (LSC). A. Long-term system cost (LSC). The LSC energy budget is determined by applying the mandatory and prescriptive requirements of the standard design to the proposed design building and has two components, the Efficiency LSC and the Total LSC.
i. The Efficiency LSC energy is the sum of the LSC energy for space-conditioning, water heating, mechanical ventilation, and the self-utilization credit.

ii. The Total LSC energy is the sum of the Efficiency LSC energy and LSC energy from the photovoltaic system, battery energy storage systems (BESS), lighting, demand flexibility, and other plug loads. B. Source energy. The source energy budget is determined by applying the mandatory and prescriptive requirements of the standard design to the proposed design building. The source energy is the total annual source energy. Exception to Section 150.1(b)1. A community shared solar electric generation system, or other renewable electric generation system, or community shared BESS, which provides dedicated power, utility energy reduction credits, or payments for energy bill reductions to the permitted building and is approved by the Energy Commission as specified in Title 24, Part 1, Section 10-115, may offset part or all of the solar electric generation system and demand flexibility Energy Design Rating required to comply with the Standards, as calculated according to methods established by the Commission in the Residential ACM Reference Manual.
1. Compliance demonstration requirements for performance standards. A. Certificate of compliance and application for a building permit. The application for a building permit shall include documentation pursuant to Sections 10-103(a)1 and 10-103(a)2 which demonstrates, using an approved calculation method, that the building has been designed so that its energy consumption does not exceed the standard design energy budgets for the applicable climate zone. Exception to Section 150.1(b)2A Multiple orientation: A permit applicant may demonstrate compliance with the energy budget requirements of Section 150.1(a) and (b) for any orientation of the same building model if the documentation demonstrates that the building model with its proposed designs and features would comply in each of the four cardinal orientations.
B. Field verification. When performance of installed features, materials, components, manufactured devices or systems above the minimum specified in Section 150.1(c) is necessary for the building to comply with Section 150.1(b), or is necessary to achieve a more stringent local ordinance, field verification shall be performed in accordance with the applicable requirements in the following subsections, and the results of the verification(s) shall be documented on applicable certificates of installation pursuant to Section 10-103(a)3 and applicable certificates of verification pursuant to Section 10-103(a)5. i. EER2/SEER2/CEER/HSPF2 Rating. When performance compliance requires installation of a space-conditioning system with a rating that is greater than the minimum rating required by Table 150.1-A or specified for the standard design, the installed system shall be field verified in accordance with the procedures specified in the applicable sections of Reference Residential Appendix RA3.4. ii. **Variable capacity heat pump (VCHP) compliance option.

Frequently asked questions

Who exactly is a CMATT and how do I verify one?

A CMATT is a Certified Mechanical Acceptance Test Technician. Verify by requesting the CMATT’s certification identification number and confirming it was issued by an approved Acceptance Test Technician Certification Provider; include that ID on the Certificate of Acceptance as required.

Can the installing contractor sign the Certificate instead of a CMATT?

The responsible person (installing contractor, RDP, owner’s agent, or person responsible for certification) may perform the field‑technician duties and sign the field‑technician declaration if they actually performed the tests; otherwise the person who performed the tests (the CMATT) must sign. Mechanical Appendix E explains this allowance.

What if the CMATT is employed by the installing contractor?

If the CMATT is an employee, the employer must be a Certified Mechanical Acceptance Test Employer. The Code explicitly makes the CMATT‑employer pairing a requirement for employee CMATTs.

Is CMATT required for every HVAC acceptance test in the Code?

No — CMATT is required only when certification is required by § 10‑103.2 for the acceptance tests specified in § 120.5(a) (and similar cross‑referenced sections such as § 160.3(d) when § 10‑103.2 applies). The triggering of the Part‑1 certification requirement controls whether the CMATT requirement applies.

What happens if the Certificate of Acceptance lacks the CMATT ID?

Missing the CMATT certification identification number can cause the Certificate to be rejected by the enforcement agency because the Energy Code requires the CMATT to disclose a valid certification ID on the Certificate of Acceptance.

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