CPC · California Plumbing Code
Certification requirements and as-built / valve identification records
The California Plumbing Code requires you to file duplicate construction documents and get plan approval before a medical gas/vacuum system permit is issued, to certify the installed system per the certification section referenced by **§ 1304.2**, and to leave the as-built plans and valve identification records at the facility after completion (see **§ 1304.3** and **§ 1304.5**).
Last reviewed: July 6, 2026
What the code requires — plain English
- Certification of medical gas and vacuum systems must follow the rules in § 1304.2.
- Before installation or alteration you must file duplicate construction documents with the Authority Having Jurisdiction, and get plan approval before a permit is issued — the construction documents must show plot plan, piping layout (including alarms and valves), demand/loading and materials as set out in § 1304.3 and § 1304.3.1.
- A record of as-built plans and valve identification records must remain on the site after work is complete per § 1304.5.
Keep complete, approved construction documents on file before work begins, certify the installed system per the certification rules, and leave the as-built plans plus valve ID records at the facility for ongoing operations and emergency use.
Requirements in detail
Key defined terms (first mention bolded)
- Certification — the acceptance/testing/verification process required for medical gas/vacuum systems (see § 1304.2).
- Construction documents — the plans and specs that must be filed and approved by the Authority Having Jurisdiction before a permit is issued (see § 1304.3 and § 1304.3.1).
- As-built plans and valve identification records — the final record drawings and valve ID information that must remain on site (see § 1304.5).
What the construction documents must show
Use the table below to decide what must be on the submitted plans and where the requirement is found.
| Decision dimension | Required content / value | Code Reference |
|---|---|---|
| Filing requirement | Duplicate construction documents filed with the Authority Having Jurisdiction before installation/alteration | § 1304.3 |
| Permit timing | Approval of the plans required before permit issuance | § 1304.3 |
| Plot plan | Scaled plot plan showing cylinder storage areas, property lines, driveways, existing/proposed buildings | § 1304.3.1 (1) |
| Piping layout | Complete piping layout including alarms, valves, origin of gases, user outlets and user inlets; include demand and loading (existing or future) | § 1304.3.1 (2) |
| Materials | Complete specifications of materials to be used | § 1304.3.1 (3) |
| As-built & valve records | A record of as-built plans and valve identification records shall remain on the site after completion | § 1304.5 |
| Valve ID content (what to include on valve ID) | Valve label should include name/chemical symbol, color code, room/areas served, and caution language (do not operate except in emergency) — see labeling rules | § 1323.14 |
| Pipe label placement (useful for valve planning) | Pipe labels at intervals of not more than 20 ft, at least once in/above every room, both sides of wall penetrations, and once per story height for risers | § 1323.13.3 |
Notes:
- The short instruction in § 1304.2 directs certification to comply with Section 1306.0; the text of § 1306.0 was not included in the retrieved snippet, so consult § 1306.0 directly for the full certification procedure and acceptance testing requirements.
Practical record-keeping details the code requires or supports
- Duplicate sets of construction documents must be submitted to the AHJ and approved prior to permit issuance (planning/permit control). § 1304.3.
- After construction, the as-built set (showing any changes) and the valve identification records must remain on site so operations staff and emergency responders have immediate access. § 1304.5.
Exceptions & special cases
- The code text for § 1304.2 points to § 1306.0 for certification process detail; the content of § 1306.0 was not retrieved here — do not assume processes (test types, certificate formats, or who signs) without consulting § 1306.0.
- Facilities subject to OSHPD or other special jurisdictional rules may have supplemental location/valve accessibility and labeling requirements (see OSHPD notes in the chapter preamble); always check AHJ/OSHPD when applicable.
- The AHJ may require additional or expanded documentation beyond the minimum items listed in § 1304.3.1 (this is consistent with the general requirement that plans show extent of work and compliance with the chapter). § 1304.4 supports the AHJ’s authority to require detail.
Common mistakes
- Leaving no as-built set on site or storing it off-site only — § 1304.5 requires the record to remain on the site.
- Submitting only a single set of construction documents or failing to get plan approval before the permit is issued — § 1304.3 requires duplicate documents and approval prior to permit issuance.
- Omitting valves, alarms, or demand/loading calculations from piping layout — these are explicit items in § 1304.3.1(2) and are decision-critical for sizing and safe operation.
- Providing valve tags that lack required identification (gas name/symbol, color code, rooms served, and caution) — see the valve ID content requirements in § 1323.14.
- Assuming certification steps or approval formats without checking § 1306.0 (the certification standard referenced by § 1304.2). The detailed certification procedure is not included in the retrieved snippet.
Worked example
Scenario: A small outpatient clinic installs a new oxygen supply manifold and distribution to 6 patient rooms.
Before work begins:
- Prepare duplicate construction documents and file them with the AHJ. The set must include: a scaled plot plan showing cylinder storage location, a piping layout showing the new manifold, branch runs to each of the 6 outlets, the location of valves and alarms, demand/load calculations for the added outlets, and a full materials specification. This is required by § 1304.3 and § 1304.3.1(1)-(3).
- Obtain plan approval from the AHJ before the permit is issued (also § 1304.3).
During and after installation:
- Follow the certification/testing process required by § 1304.2 (which points you to § 1306.0 for the full certification steps). Because the text of § 1306.0 is not in the retrieved snippet, get § 1306.0 and follow the listed tests/acceptance criteria.
- Create an as-built set that records any field changes to routing, valve locations, or outlet numbering. Leave that as-built set on site per § 1304.5.
- Produce valve identification records for each shutoff valve: label each valve with the chemical symbol (O2), color code, the rooms served (e.g., "Rooms 101–106"), and a caution such as “Do not close/open except in emergency” as required by § 1323.14. Also ensure piping labels appear at required intervals and locations (pipe labeling rules in § 1323.13.3 are useful for planning).
Related provisions (quick list)
- § 1304.2 — Certification reference (certification shall comply with Section 1306.0).
- § 1304.3 — Construction documents: duplicate filing and plan approval before permit issuance.
- § 1304.3.1 — Construction document content: plot plan, piping layout (including valves and alarms), demand and loading, and materials.
- § 1304.4 — Extent of work: documents must show nature/extent of work and compliance with the chapter.
- § 1304.5 — Record: as-built plans and valve identification records shall remain on the site.
- § 1323.13 — Pipe labeling requirements (intervals, location, allowable markings).
- § 1323.14 — Identification of shutoff valves (what must be included on valve ID).
Code references
Grounded in the retrieved California Plumbing Code — click a citation to read the verbatim passage:
CPC § 1304.3.1 High relevance — show source text
Approval of the plans shall be obtained before issuance of a permit by the Authority Having Jurisdiction. 1304.3.1 Requirements. Construction documents shall show the following: (1) Plot plan of the site, drawn to scale, indicating the location of existing or new cylinder storage areas, property lines, driveways, and existing or proposed buildings. (2) Piping layout of the proposed piping system or alteration, including alarms, valves, the origin of gases, user outlets, and user inlets. The demand and loading of piping, existing or future, shall also be indicated. (3) Complete specification of materials.
1304.4 Extent of Work. Construction documents submitted to the Authority Having Jurisdiction shall clearly indicate the nature and extent of the work proposed and shall show in detail that such work will be in accordance with the provisions of this chapter. 1304.5 Record. A record of as-built plans and valve identification records shall remain on the site.
1305.0 System Performance. 1305.1 Required Operating Pressures. Medical gas and vacuum systems shall be capable of delivering service in the pressure ranges listed in Table 1305.1.
276 2025 CALIFORNIA PLUMBING CODE
), Copyright © 2025 IAPMO, and may not be used for any other purpose or distributed to any other persons or parties.
HEALTH CARE FACILITIES AND MEDICAL GAS AND MEDICAL VACUUM SYSTEMS
TABLE 1305.1
STANDARD DESIGNATION COLORS AND OPERATING PRESSURES FOR GAS AND VACUUM SYSTEMS
[NFPA 99: TABLE 5.1.11]
GAS SERVICE ABBREVIATED
NAMECOLORS
(BACKGROUND/ TEXT)STANDARD GAUGE
PRESSUREMedical air Med Air Yellow/black 50–55 psi Carbon dioxide CO2 Gray/black or gray/white 50–55 psi Helium He Brown/white 50–55 psi Nitrogen N2 Black/white 55–185 psi Nitrous oxide N2O Blue/white 50–55 psi Oxygen O2 Green/white or white/green 50–55 psi Oxygen/carbon dioxide mixtures O2/CO2 n% (_n _= % of CO2) Green/white 50–55 psi Medical–surgical vacuum Med Vac White/black 15 inch to 30 inch HgV Waste anesthetic gas disposal WAGD Violet/white Varies with system type Medical-surgical vacuum/
WAGD combinationMed-surg/WAGD White/black and violet/white 15 inch to 30 inch HgV Other mixtures Gas A% / Gas B% Colors as above; major gas for back-
ground/minor gas for textNone Nonmedical air and dental air –– Yellow and white diagonal stripe/black None Nonmedical vacuum and dental
vacuum–– White and black diagonal stripe/black boxed None Laboratory air –– Yellow and white checkerboard/black None Laboratory vacuum –– White and black checkerboard/black boxed None Instrument air –– Red/white 50–185 psi For SI units: 1 pound-force per square inch = 6.8947 kPa, 1 inch of mercury vacuum (HgV) = 3.386 kPa
CPC § 1304.1.2 High relevance — show source text
1304.1.2 [OSHPD 1, 1R, 2, 3, 4 & 5] A medical gas source system serving an OSHPD 1, 2, 3 or 5 building shall not be located in an OSHPD 1R or OSHPD 3 build- ing. OSHPD 1R buildings may be served by an individ- ual main supply line from other OSHPD buildings, with a main line valve as per NFPA 99. [NFPA 99:5.1.4.2.1, 5.1.4.2.2, 5.1.4.3.1, 5.1.4.3.2] Valves shall be accessible and clearly labeled. Exception: A medical gas source system serving only an OSHPD 1R or 3 building may be located within it. 1304.2 Certification of Systems. Certification of medical gas and vacuum systems shall comply with the requirements of Section 1306.0.
1304.3 Construction Documents. Before a medical gas or medical vacuum system is installed or altered in a hospital, medical facility, or clinic, duplicate construction documents shall be filed with the Authority Having Jurisdiction. Approval of the plans shall be obtained before issuance of a permit by the Authority Having Jurisdiction. 1304.3.1 Requirements. Construction documents shall show the following: (1) Plot plan of the site, drawn to scale, indicating the location of existing or new cylinder storage areas, property lines, driveways, and existing or proposed buildings. (2) Piping layout of the proposed piping system or alteration, including alarms, valves, the origin of gases, user outlets, and user inlets. The demand and loading of piping, existing or future, shall also be indicated. (3) Complete specification of materials.
1304.4 Extent of Work. Construction documents submitted to the Authority Having Jurisdiction shall clearly indicate the nature and extent of the work proposed and shall show in detail that such work will be in accordance with the provisions of this chapter. 1304.5 Record. A record of as-built plans and valve identification records shall remain on the site.
1305.0 System Performance. 1305.1 Required Operating Pressures. Medical gas and vacuum systems shall be capable of delivering service in the pressure ranges listed in Table 1305.1.
276 2025 CALIFORNIA PLUMBING CODE
), Copyright © 2025 IAPMO, and may not be used for any other purpose or distributed to any other persons or parties.
HEALTH CARE FACILITIES AND MEDICAL GAS AND MEDICAL VACUUM SYSTEMS
TABLE 1305.1
STANDARD DESIGNATION COLORS AND OPERATING PRESSURES FOR GAS AND VACUUM SYSTEMS
[NFPA 99: TABLE 5.1.11]
CPC § 31-12 Medium relevance — show source text
31-12 2025 CALIFORNIA BUILDING CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
SPECIAL CONSTRUCTION
Parks Act (Health and Safety Code Section 18200 et seq.) and the California Code of Regulations, Title 25, Division 1, Chapter 2. Manufac- tured homes must meet unit identification (data plate) and certification label requirements as specified in the Code of Federal Regulations, Title 24, Subtitle B, Chapter XX, Part 3280 and Health and Safety Code Section 18032. Commercial modulars and special purpose commercial modulars must meet identification requirements in the California Code of Regulations, Title 25, Division 1, Chapter 3, Subchapter 2.
3113.1.1 Compliance. A newly constructed relocatable building shall comply with the requirements of this code for new construction. [DSA-SS and DSA-SS/CC] as enforced by the enforcement agency. An existing relocatable building that is undergoing alteration, addition, change of occupancy or relocation shall comply with Chapter 14 of the California Existing Building Code .
Exception: [DSA-SS and DSA-SS/CC] An existing relocatable public school building that is undergoing alteration, addition or change of occupancy shall comply with Chapter 3 of the California Existing Building Code.
3113.2 Supplemental information. Supplemental information specific to a relocatable building shall be submitted to the authority having jurisdiction. It shall, as a minimum, include the following in addition to the information required by Section 105:
Exception: [DSA-SS and DSA-SS/CC] Supplemental information specific to a relocatable building shall be submitted to the enforce- ment agency. It shall, as a minimum, include the following in addition to the information required by Section 1603A:
Manufacturer’s name and address.
Date of manufacture.
Serial number of module.
Manufacturer’s design drawings.
Type of construction in accordance with Section 602.
Design loads including: roof live load, roof snow load, floor live load, wind load and seismic site class, use group and design category.
Additional building planning and structural design data.
Site-built structure or appurtenance attached to the relocatable building.
3113.3 Manufacturer’s data plate. Each relocatable module shall have a data plate that is permanently attached on or adjacent to the electrical panel, and shall include the following information:
Occupancy group.
Manufacturer’s name and address.
Date of manufacture.
Serial number of module.
Design roof live load, design floor live load, snow load, wind and seismic design.
Approved quality assurance agency or approved inspection agency.
Codes and standards of construction.
Envelope thermal resistance values.
Electrical service size.
Fuel-burning equipment and size.
Special limitations if any.
Exception: [DSA-SS and DSA-SS/CC] Each relocatable module shall have two metal identification labels permanently attached to the structure as enforced by the enforcement agency.
3113.4 Inspection agencies. The building official is authorized to accept reports of inspections conducted by approved inspection agencies during off-site construction of the relocatable building, and to satisfy the applicable requirements of Sections 110.3 through 110.3.12.1.
CPC § 101.1. Medium relevance — show source text
ORDINANCE NO.
An ordinance of the [JURISDICTION] adopting the 2024 edition of the Uniform Plumbing Code, regulating and controlling the design, construction, quality of materials, erection, installation, alteration, repair, location, relocation, replacement, addition to, use or maintenance of plumbing systems in the [JURISDICTION]; providing for the issuance of permits and collection of fees therefor; repealing Ordinance No. of the [JURISDICTION] and all other ordinances and parts of the ordinances in conflict therewith.
The [GOVERNING BODY] of the [JURISDICTION] does ordain as follows:
Section 1 Codes Adopted by Reference. That certain documents, three (3) copies of which are on file in the office of the [JURISDICTION'S KEEPER OF RECORDS] and the [JURISDICTION], being marked and designated as the 2024 Uniform Plumbing Code, including Appendix Chapters [FILL IN THE APPENDIX CHAPTERS BEING ADOPTED], as published by the International Association of Plumbing and Mechanical Officials, be and is hereby adopted as the Code of the [JURISDICTION], in the State of [STATE NAME] regulating and controlling the design, construction, quality of materials, erection, installation, alteration, repair, location, relocation, replacement, addition to, use or maintenance of plumbing systems as herein provided; providing for the issuance of permits and collection of fees therefor; and each and all of the regulations, provisions, penalties, conditions and terms of such 2024 Uniform Plumbing Code on file in the office of the
[JURISDICTION] are hereby referred to, adopted, and made a part hereof, as if fully set out in this ordinance.
Section 2 Modifications. The following sections are hereby revised: Section 101.1. Insert: [NAME OF JURISDICTION] Section 104.5. Insert: [APPROPRIATE FEE SCHEDULE]
Section 3 Conflicting Ordinances Repealed. That Ordinance No. of [JURISDICTION] entitled
[TITLE OF THE ORDINANCE OR ORDINANCES IN EFFECT AT THE PRESENT TIME SO THAT THEY WILL BE REPEALED BY MENTION] and all other ordinances or parts of ordinances in conflict herewith are hereby repealed.
Section 4 Preemption. [JURISDICTION] hereby fully occupies and preempts the entire field of regulation of design, construction, quality of materials, erection, installation, alteration, repair, location, relocation, replacement, addition to, use or maintenance of plumbing systems; and provision for the issuance of permits and collection of fees therefor; within the boundaries of [JURISDICTION]. [AS APPROPRIATE] Cities, towns, and counties or other municipalities may enact only those laws and ordinances relating to this field as specifically authorized by state law and consistent with this ordinance. Local laws and ordinances that are inconsistent with, more restrictive than, or exceed the requirements of [ORDINANCE NO.] shall not be enacted and are hereby expressly preempted and repealed, regardless of the nature of the code, charter, or home rule status of such city, town, county, or municipality.
CPC § 403.1 Medium relevance — show source text
only those sections
that are listed below||||||X|X||||||||||||||||X|| |Chapter / Section||||||||||||||||||||||||| |403|||X|||||||||||||||||||||| |403.1|||X|||||||||||||||||||||| |403.1.1|||X|||||||||||||||||||||| |403.2|||X|||||||||||||||||||||| |403.2.1|||X|||||||||||||||||||||| |403.2.1.1|||X|||||||||||||||||||||| |403.3|||X|||||||||||||||||||||| |403.3.1|||X|||||||||||||||||||||| |403.3.1.2|||X|||||||||||||||||||||| |403.3.2|||X|||||||||||||||||||||| |403.3.2.1|||X|||||||||||||||||||||| |403.3.3|||X|||||||||||||||||||||| |403.3.5|||X|||||||||||||||||||||| |403.4.7|||X|||||||||||||||||||||| |403.4.7.1|||X|||||||||||||||||||||| |403.4.8.1|||X|||||||||||||||||||||| |403.5.4|||X|||||||||||||||||||||| |403.6|||X|||||||||||||||||||||| |403.7|||X|||||||||||||||||||||| |404.5|||X|||||||||||||||||||||| |404.6|||X|||||||||||||||||||||| |404.12|||X|||||||||||||||||||||| |406.2.1|||X|X|X|||||||||||||||||||| |406.2.2||||X|X|||||||||||||||||||| |406.2.3||||||X|X|||||||||||||||||| |406.2.7||||X|X|X||||||||||||||||||| |406.3.1|||X|||||||||||||||||||||| |406.6.4.1|||X|||||||||||||||||||||| |406.8.2|||X|||||||||||||||||||||| |406.9|||X|||||||||||||||||||||| |406.9.1|||X|||||||||||||||||||||| |406.9.2|||X|||||||||||||||||||||| |406.9.3|||X|||||||||||||||||||||| |407||||||||||||||||||||||||| |407.1|||X|||||||||||||||||||||| |407.1.1|||X|||||||||||||||||||||| |407.2|||X|||||||||||||||||||||| |407.2.1|||X|||||||||||||||||||||| |407.2.2|||X|||||||||||||||||||||| |407.2.3|||X|||||||||||||||||||||| |407.2.5|||X||||||||||||||||||||||2025 CALIFORNIA BUILDING CODE 4-1
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
CALIFORNIA BUILDING CODE – MATRIX ADOPTION TABLE CHAPTER 4 – SPECIAL DETAILED REQUIREMENTS BASED ON OCCUPANCY AND USE—continued
CPC § 13-4 Medium relevance — show source text
1304 Investigation and Evaluation . . . . . . . . . . . . . . . . . . . 13-4
1305 Scoring and Evaluation . . . . . . . . . . . . . . . . . . . . . . . . 13-4
1306 Building Score . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-14
1307 Evaluation of Building Safety. . . . . . . . . . . . . . . . . . 13-16
CHAPTER 14 RELOCATED OR MOVED BUILDINGS . . . . . . 14-3
1401 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-3
1402 Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-3
CHAPTER 15 CONSTRUCTION SAFEGUARDS . . . . . . . . . . 15-3
1501 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-3
1502 Owner’s Responsibility for Fire Protection . . . . . . . 15-3
1503 Sanitary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-4
1504 Protection of Pedestrians . . . . . . . . . . . . . . . . . . . . . . 15-4
1505 Protection of Adjoining Property . . . . . . . . . . . . . . . 15-5
1506 Temporary Use of Streets, Alleys and Public Property . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-6
1507 Fire Extinguishers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-6
1508 Means of Egress. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-6
1509 Standpipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-6
1510 Automatic Sprinkler System. . . . . . . . . . . . . . . . . . . . 15-6
1511 Accessibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-7
1512 Water Supply for Fire Protection. . . . . . . . . . . . . . . . 15-7
CHAPTER 16 REFERENCED STANDARDS. . . . . . . . . . . . . . 16-3
APPENDIX A GUIDELINES FOR THE SEISMIC RETROFIT
CPC § 3.5. Medium relevance — show source text
(7) Other means of protection, if the degree of protection afforded is equal to or greater than that afforded by any of the features set forth above and has been independently verified by an approved testing laboratory as meeting standards for those features estab- lished by ASTM International, the American Society of Mechanical Engineers, or another nationally recognized standards development organization, and the feature is accompanied by a label verifying that the protection meets those standards.
(b) The requirements of subdivision (a) are not satisfied by any of the following: (1) An exit alarm and a self-closing, self-latching device on the same door. (2) An exit alarm and a door latch on separate doors. (3) A safety pool cover and an alarm described in paragraph (6) of subdivision (a).
(c) Before the issuance of a final approval for the completion of permitted construction or remodeling work, the local building code offi- cial shall inspect the drowning safety prevention features required by this section and, if no violations are found, shall give final approval.
[Amended by Stats. 2024, Ch. 745 (AB 2866) and Ch 769 (SB 552) Effective January 1, 2025.]
115923. An enclosure shall have all of the following characteristics:
(a) Any access gates through the enclosure open away from the swimming pool, and are self-closing with a self-latching device placed no lower than 60 inches above the ground.
(b) A minimum height of 60 inches.
(c) A maximum vertical clearance from the ground to the bottom of the enclosure of two inches.
(d) Gaps or voids, if any, do not allow passage of a sphere equal to or greater than four inches in diameter.
(e) An outside surface free of protrusions, cavities or other physical characteristics that would serve as handholds or footholds that could enable a child below the age of five years to climb over.
(Added by Stats. 1996, Ch. 925, Sec. 3.5. Effective January 1, 1997.)
115924. (a) Any person entering into an agreement to build a swimming pool or spa, or to engage in permitted work on a pool or spa covered by this article, shall give the consumer notice of the requirements of this article.
(b) Pursuant to existing law, the Department of Health Services shall have available on the department’s Web site, commencing January 1, 2007, approved pool safety information available for consumers to download. Pool contractors are encouraged to share this informa- tion with consumers regarding the potential dangers a pool or spa poses to toddlers. Additionally, pool contractors may provide the consumer with swimming pool safety materials produced from organizations such as the United States Consumer Product Safety Commission, Drowning Prevention Foundation, California Coalition for Children’s Safety & Health, Safe Kids Worldwide, Association of Pool and Spa Professionals, or the American Academy of Pediatrics.
(Amended by Stats. 2006, Ch. 478, Sec. 3. Effective January 1, 2007.)
115925. The requirements of this article do not apply to any of the following:
(a) Public swimming pools.
(b) Hot tubs or spas with locking safety covers that comply with the ASTM International F1346 standard.
(c) An apartment complex or any residential setting other than a single-family home.
[Amended by Stats. 2024, Ch. 769 (SB 552) Effective January 1, 2025.]
CPC § 11-3 Medium relevance — show source text
1101 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-3
1102 Heights and Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-3
1103 Structural. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-4
1104 Energy Conservation. . . . . . . . . . . . . . . . . . . . . . . . . . . 11-4
CHAPTER 12 HISTORIC BUILDINGS . . . . . . . . . . . . . . . . . .12-1
xviii 2025 CALIFORNIA EXISTING BUILDING CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
CHAPTER 13 PERFORMANCE COMPLIANCE METHODS. . 13-3
1301 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-3
1302 Applicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-3
1303 Acceptance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-4
1304 Investigation and Evaluation . . . . . . . . . . . . . . . . . . . 13-4
1305 Scoring and Evaluation . . . . . . . . . . . . . . . . . . . . . . . . 13-4
1306 Building Score . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-14
1307 Evaluation of Building Safety. . . . . . . . . . . . . . . . . . 13-16
CHAPTER 14 RELOCATED OR MOVED BUILDINGS . . . . . . 14-3
1401 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-3
1402 Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-3
CHAPTER 15 CONSTRUCTION SAFEGUARDS . . . . . . . . . . 15-3
1501 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-3
1502 Owner’s Responsibility for Fire Protection . . . . . . . 15-3
1503 Sanitary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-4
CPC § 1323.13.3 Medium relevance — show source text
2, 1323.13.3| |1326.4 - 1326.10|1326.5 - 1326.11| |1505.6 - 1505.14|1505.5 - 1505.13| |Figure 1505.10|Figure 1505.9| |1506.6 - 1506.13|1506.5 - 1506.12| |1603.3 - 1603.4|1603.4 - 1603.5| |Table 1603.4|Table 1603.5| |1603.5 - 1603.19|1603.6 - 1603.20| |1603.20|1503.2.4| |L 402.9 - L 402.11|L 402.8 - L 402.10| |L 404.9 - L 404.12|L 404.8 - L 404.11| |L 411.5, L 411.6|L 411.2, L411.3| |L 411.7|L 411.4| |L 411.9 - L 411.12|L 411.5 - L 411.8|
xxii 2025 CALIFORNIA PLUMBING CODE
), Copyright © 2025 IAPMO, and may not be used for any other purpose or distributed to any other persons or parties.
RELATED PUBLICATIONS AND SERVICES
The Documents Listed are Not by this Reference Adopted by The State of California.
IAPMO provides a variety of other products which are useful for inspectors, building officials, architects, engineers,
manufacturers, contractors, plumbers, and apprentices.
IAPMO Headquarters Directory
4755 East Philadelphia Street, Ontario, California 91761-2816
Publication Order Desk Phone: 800-85-IAPMO
Publication Toll Free Fax: 877-85-CODES
E-mail: iapmo@iapmo.org
Website: www.iapmo.org
Free Code Question: 800-201-0335
Uniform Plumbing Code – 2024 Edition:
The Uniform Plumbing Code is the most widely adopted plumbing code in the world. The 2024 edition contains complete “turnkey” requirements for the installation and maintenance of plumbing systems, all in one easy to use book.
Uniform Plumbing Code Illustrated Training Manual:
The UPC Illustrated Training Manual is an excellent reference for anyone involved in the plumbing industry. It contains an extensive definitions section and several hundred comprehensive technical diagrams and illustrations. It serves as a textbook, and it also is useful as a valuable tool for explaining the intent and use of the Code.
Uniform Plumbing Code Study Guide:
This book is the perfect complement to the UPC Illustrated Training Manual. Alone, it constitutes a complete self-study course for learning the UPC. It has hundreds of questions, general practice exams, and plumbing math, pipe sizing exercises and fitting identification. A big help in getting you ready for a certification exam!
Guide to Important Code Questions to the Uniform Plumbing Code:
An excellent reference for learning and understanding plumbing code changes and identifies code changes between editions. It is a useful tool for preparing code change proposals.
Uniform Mechanical Code – 2024 Edition:
The Uniform Mechanical Code contains complete requirements for the installation and maintenance of heating, ventilating, cooking and refrigeration systems.
Uniform Mechanical Code Illustrated Training Manual:
Contains technical diagrams and illustrations that demonstrate the intent and use of the UMC. A great reference for everyone involved in Mechanical HVACR design and installation.
Uniform Mechanical Code Study Guide:
CPC § 104.2.3 Medium relevance — show source text
viii 2025 CALIFORNIA EXISTING BUILDING CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
MARGINAL MARKINGS
Symbols in the margin indicate the status of code changes as follows:
This symbol indicates that a change has been made to a California amendment.
�
This symbol indicates deletion of California amendment language.
This symbol indicates that a change has been made to International Code Council model language.
This symbol indicates deletion of International Code Council model language.
A single asterisk [*] placed in the margin indicates that text or a table has been relocated within the code. A double asterisk [**] placed in the margin indicates that the text or table immediately following it has been relocated there from elsewhere in the code.
RELOCATION OF TEXT OR TABLES
The following table indicates relocation of sections and tables in the 2024 edition of the IEBC from the 2021 edition.
RELOCATIONS Col2 2024 LOCATION 2021 LOCATION 104.2.3 104.11 104.2.3.5 104.11.2 104.2.3.6 104.11.1 104.2.4 104.10 1041.2.4.1 104.10.1 104.6 104.3 104.7.2 104.4 503.2 503.18 804.4 804.11 804.1 804.9 804.13 804.1 1302 Applicability New 1302.1-1302.1.6 1301.2-1301.2.6 Section 1303 Acceptance New 1303.1-1303.1.3 1301.3-1301.3.3 Section 1304 Investigation and Evaluation New 1304.1-1304.1.3 1301.4-1301.4.3 Section 1305 Scoring and Evaluation New 1305.1-1305.2.21.3 1301.5-1301.6.21.3.1 Section 1306 Building Score New 1306.1-1306.2 1301.7-1301.8 Section 1307 Evaluation of Building Safety New 1307.1-1307.1.1 1301.9-1301.9.1 1503.1 1501.7 1504.1 1501.6 1504.1.1 1501.6.1 1504.1.2 1501.6.2 1504.1.3 1501.6.3 1504.1.4 1501.6.4 1504.1.4.1 1501.6.4.1 1504.1.5 1501.6.5 1504.1.6 1501.6.6 1504.1.7 1501.6. 1505 1502 1506 1503 1507 1504 1508 1505 1509 1506 1510 1507 1511 508 1512 1509 2025 CALIFORNIA EXISTING BUILDING CODE ix
CPC § 5.10.1.2 Medium relevance — show source text
5.10.1.2(2)|Table E 503.5.10(2)| |E 503.5.10.1.2|E 503.5.10| |E 503.5.10.2 – E 503.5.10.2.2|E 503.5.10.1 – E 503.5.10.1.2| |E 503.5.12.1|E 503.5.12| |E 503.5.12.2|E 503.5.12.1| |E 503.6.5.4|E 503.6.5.4.1|
xxii 2025 CALIFORNIA MECHANICAL CODE
), Copyright © 2025 IAPMO, and may not be used for any other purpose or distributed to any other persons or parties.
RELATED PUBLICATIONS AND SERVICES
The Documents Listed are Not by this Reference Adopted by The State of California.
IAPMO provides a variety of other products which are useful for inspectors, building officials, architects, engineers,
manufacturers, contractors, plumbers, and apprentices.
IAPMO Headquarters Directory
4755 East Philadelphia Street, Ontario, California 91761-2816
Publication Order Desk Phone: 800-85-IAPMO
Publication Toll Free Fax: 877-85-CODES
E-mail: iapmo@iapmo.org
Website: www.iapmo.org
Free Code Question: 800-201-0335
Uniform Mechanical Code – 2024 Edition:
The Uniform Mechanical Code contains complete requirements for the installation and maintenance of heating, ventilating, cooking and refrigeration systems.
Uniform Mechanical Code Illustrated Training Manual:
Contains technical diagrams and illustrations that demonstrate the intent and use of the UMC. A great reference for everyone involved in Mechanical HVACR design and installation.
Uniform Mechanical Code Study Guide:
The Study Guide is a complete self-study course for learning the UMC. A big help in getting ready for a certification exam! This book is the perfect complement to the UMC Illustrated Training Manual.
Guide to Important Code Questions to the Uniform Mechanical Code:
An excellent reference for learning and understanding mechanical code changes and identifies code changes between editions. It is a useful tool for preparing code change proposals.
Uniform Plumbing Code – 2024 Edition:
The Uniform Plumbing Code is the most widely adopted plumbing code in the world. The 2024 edition contains complete “turnkey” requirements for the installation and maintenance of plumbing systems, all in one easy to use book.
Uniform Plumbing Code Illustrated Training Manual:
The UPC Illustrated Training Manual is an excellent reference for anyone involved in the plumbing industry. It contains an extensive definitions section and several hundred comprehensive technical diagrams and illustrations. It serves as a textbook, and it also is useful as a valuable tool for explaining the intent and use of the Code.
Uniform Plumbing Code Study Guide:
This book is the perfect complement to the UPC Illustrated Training Manual. Alone, it constitutes a complete self-study course for learning the UPC. It has hundreds of questions, general practice exams, and plumbing math, pipe sizing exercises and fitting identification. A big help in getting you ready for a certification exam!
Guide to Important Code Questions to the Uniform Plumbing Code:
An excellent reference for learning and understanding plumbing code changes and identifies code changes between editions. It is a useful tool for preparing code change proposals.
2025 CALIFORNIA MECHANICAL CODE xxiii
CPC § 104.1 Medium relevance — show source text
[A] 104.1 General. The building official is hereby authorized and directed to enforce the provisions of this code.
[A] 104.2 Determination of compliance. The building official shall have the authority to determine compliance with this code, to render interpretations of this code and to adopt policies and procedures in order to clarify the application of its provisions. Such interpretations, policies and procedures:
- Shall be in compliance with the intent and purpose of this code.
- Shall not have the effect of waiving requirements specifically provided for in this code.
[A] 104.2.1 Listed compliance. Where this code or a referenced standard requires equipment, materials, products or services to be listed and a listing standard is specified, the listing shall be based on the specified standard. Where a listing standard is not specified, the listing shall be based on an approved listing criteria. Listings shall be germane to the provision requiring the listing. Installation shall be in accordance with the listing and the manufacturer’s instructions, and where required to verify compliance, the listing standard and manufacturer’s instructions shall be made available to the building official.
[A] 104.2.2 Technical assistance. To determine compliance with this code, the building official is authorized to determine compliance with this code, to require the owner or owner’s authorized agent to provide a technical opinion and report.
[A] 104.2.2.1 Cost. A technical opinion and report shall be provided without charge to the jurisdiction.
[A] 104.2.2.2 Preparer qualifications. The technical opinion and report shall be prepared by a qualified engineer, specialist, laboratory or specialty organization acceptable to the building official. The building official is authorized to require design submittals to be prepared by, and bear the stamp of, a registered design professional.
[A] 104.2.2.3 Content. The technical opinion and report shall analyze the properties of the design, operation or use of the building or premises and the facilities and appurtenances situated thereon to identify and propose necessary recommendations.
[A] 104.2.2.4 Tests. Where there is insufficient evidence of compliance with the provisions of this code, the building official shall have the authority to require tests as evidence of compliance. Test methods shall be as specified in this code or by other recognized test standards. In the absence of recognized test standards, the building official shall approve the testing procedures. Such tests shall be performed by a party acceptable to the building official.
[A] 104.2.3 Alternative materials, design and methods of construction and equipment. The provisions of this code are not intended to prevent the installation of any material or to prohibit any design or method of construction not specifically prescribed by this code, provided that any such alternative has been approved.
Exception: Performance-based alternative materials, designs or methods of construction and equipment complying with the International Code Council Performance Code . This exception shall not apply to alternative structural materials or to alternative structural designs. [DSA-SS, DSA-SS/CC] The International Code Council Performance Code is not permitted by DSA.
[DSA-SS, DSA-SS/CC & OSHPD 1, 1R, 2, 4 & 5] Alternative system shall satisfy ASCE 7 Section 1.3, unless more restrictive require- ments are established by this code for an equivalent system.
[DSA-SS, DSA-SS/CC] Alternative systems shall also satisfy the California Administrative Code, Section 4-304.
Frequently asked questions
Who must keep the as-built plans and valve identification records on site?
The code requires that a record of as-built plans and valve identification records remain on the site; the owner/operator of the facility is responsible for retaining them at the facility per § 1304.5.
Do I need to submit anything before I get a permit?
Yes — duplicate construction documents must be filed with and approved by the Authority Having Jurisdiction before issuance of a permit, per § 1304.3.
What must be on a valve tag?
Valve identification must include the name/chemical symbol, color code, room(s) or areas served, and a caution not to operate except in emergency as specified in § 1323.14.
Where do I find the detailed certification/test steps I must perform?
§ 1304.2 directs certification to Section 1306.0; the detailed certification steps are in § 1306.0, which was not included in the retrieved snippet — consult § 1306.0 directly.
How often should piping be labeled (useful for valve planning)?
Pipe labels are required at intervals of not more than 20 feet and at specified locations (at least once in/above every room, both sides of wall penetrations, and once per story height for risers) under § 1323.13.3.
More in California Plumbing Code
- Administration
- Definitions
- General Regulations
- Plumbing Fixtures and Fixture Fittings
- Water Heaters
- Water Supply and Distribution
- Sanitary Drainage (Drain, Waste, and Vent)
- Indirect Wastes
- Vents
- Traps and Interceptors
- Storm Drainage
- Fuel Gas Piping
- Health Care Facilities — Medical Gas and Medical Vacuum Systems
- Alternate Water Sources and Nonpotable Rainwater Catchment Systems
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