Definitions tied to procedures, tiers and technical programs

Grounded in the retrieved California Green Building Standards Code (CALGreen) — click a citation to read the verbatim passage:

• CALGreen § 304.1 High relevance — show source text

  SECTION 304—VOLUNTARY TIERS

  304.1 Purpose. Voluntary tiers are intended to further encourage building practices that improve public health, safety and general welfare by promoting the use of building concepts which minimize the building’s impact on the environment and promote a more sustainable design.

  304.1.1 Tiers. The provisions of Divisions A4.6 and A5.6 outline means, in the form of voluntary tiers, for achieving enhanced construction levels by incorporating additional measures for residential and nonresidential new construction. Voluntary tiers may be adopted by local governments and, when adopted, enforced by local enforcing agencies. Buildings complying with tiers specified for each occupancy contain additional prerequisite and elective green building measures necessary to meet the threshold of each tier. See Section 101.7 of this code for procedures and requirements related to local amendments, additions or deletions, including changes to energy standards.

  [BSC & HCD] Where there are practical difficulties involved in complying with the threshold levels of a tier, the enforcing agency may grant modifications for individual cases. The enforcing agency shall first find that a special individual reason makes the strict letter of the tier impractical and that modification is in conformance with the intent and purpose of the measure. The details of any action granting modification shall be recorded and entered in the files of the enforcing agency.

  SECTION 305 [OSHPD 1]— CALGreen TIER 1 AND CALGreen TIER 2

  305.1 CALGreen Tier 1 and CALGreen Tier 2 buildings contain voluntary green building measures necessary to meet the threshold of each level.

  305.1.1 CALGreen Tier 1. To achieve CALGreen Tier 1, buildings must comply with the latest edition of “Savings By Design, Healthcare Modeling Procedures” found online at http://www.energysoft.com/main/page_ downloads_ sbd_healthcare.html.

  305.1.2 CALGreen Tier 2. To achieve CALGreen Tier 2, buildings must exceed the latest edition of “Savings By Design, Healthcare Modeling Procedures” by a minimum of 15 percent.

  SECTION 306 [DSA-SS]—VOLUNTARY MEASURES

  306.1 Purpose. For public schools and community colleges, voluntary measures further encourage building practices that improve public health, safety and general welfare by promoting the use of building concepts which minimize the building’s impact on the environment and promote a more sustainable design.

  306.1.1 Appendix A5, Divisions A5.1 through A5.5, outline means of achieving enhanced sustainable design and construction by incorporating voluntary measures that exceed the mandatory measures.

  306.1.2 Chapter 5 Nonresidential Mandatory Measures that are not adopted as mandatory measures by DSA-SS are voluntary measures recommended and encouraged for the design, construction, verification and maintenance of non-energy systems.

  Note: The building commissioning requirements for energy efficiency specified in the California Energy Code are required.

  3-4 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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

  CALIFORNIA GREEN BUILDING STANDARDS CODE – MATRIX ADOPTION TABLE

  CHAPTER 4 – RESIDENTIAL MANDATORY MEASURES

  (Matrix Adoption Tables are nonregulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)

• CALGreen § 1-1 High relevance — show source text

  2025 CALIFORNIA GREEN BUILDING STANDARDS CODE APPENDIX A6.1-1

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

  APPENDIX A6.1-2 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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

  A6 VOLUNTARY STANDARDS FOR HEALTH FACILITIES [OSHPD 1, 2 & 4]

  DIVISION A6.1 – SITE PLANNING AND DESIGN

  SECTION A6.106—SITE DEVELOPMENT

  A6.106.9 Building orientation. Locate and orient the building as follows:

  1. When site and location permit, orient the building with the long sides facing north and south.
  2. Protect the building from thermal loss, drafts and degradation of the building envelope caused by wind and wind-driven materials such as dust, sand, snow and leaves, with building orientation and landscape features. Note: For information on sun angles and shading, visit: http://www2.aud.ucla.edu/energy-design-tools/.

  Calculations may be made using the Solar-2 tool.

  DIVISION A6.2 – ENERGY EFFICIENCY

  SECTION A6.202—DEFINITIONS

  A6.202.1 Definitions. The following words and terms shall, for the purposes of this chapter and as used elsewhere in this code, have the meanings shown herein.

  ENERGY STAR. A joint program of the US Environmental Protection Agency and the US Department of Energy. ENERGY STAR is a voluntary program designed to identify and promote energy-efficient products and practices.

  SECTION A6.203—PERFORMANCE APPROACH

  A6.203.2 Energy performance. It is the intent of this code to encourage green buildings to achieve exemplary performance in the area of energy efficiency.

  A6.203.2.1 CALGreen Tier 1. [OSHPD 1] To achieve CALGreen [Tier 1, buildings must comply with the latest edition of “Savings By](http://www.energysoft.com/ep/ 2007SBDHProcedures.pdf) Design, Healthcare Modeling Procedures” found online at http://www.energysoft.com/ep/ 2007SBDHProcedures.pdf.

  A6.203.2.2 CALGreen Tier 2. [OSHPD 1] To achieve CALGreen Tier 2, buildings must exceed the latest edition of “Savings By Design, Healthcare Modeling Procedures” by a minimum of 15 percent.

  SECTION A6.204—PRESCRIPTIVE APPROACH

  A6.204.1 ENERGY STAR equipment and appliances. All equipment and appliances provided by the builder shall be ENERGY STAR labeled if ENERGY STAR is applicable to that equipment or appliance.

  A6.204.4 Commissioning. [OSHPD 1 & 4] Building commissioning shall be included in the design and construction processes of the building project to verify that the building’s energy related systems are installed, calibrated and perform according to the owner’s project requirements, basis of design and construction documents.

  The owner and designer shall designate an individual as the Commissioning Authority (CxA) to lead, review and oversee the completion of the commissioning process activities. The owner shall document the Owner’s Project Requirements (OPR).

• CALGreen § 504.2 High relevance — show source text

  504.2**Install VOC compliant resilient flooring systems.
  Tier 1. At least 90 percent of the resilient flooring installed shall comply.
  **Tier 2.**100 percent of the resilient flooring installed shall comply.||2|2|
  |
  |
  | |A4.504.3Thermal insulation installed in the building shall meet the
  following requirements:
  Tier 1. Install thermal insulation in compliance with VOC limits.
  Tier 2. Install insulation which contains no-added formaldehyde
  (NAF) and is in compliance with Tier 1.||2|2|||| |Interior Moisture Control||||||| |4.505.2Vapor retarder and capillary break is installed at slab-on-
  grade foundations.||||||| |4.505.3 Moisture content of building materials used in wall and floor
  framing is checked before enclosure.||||||| |Indoor Air Quality and Exhaust||||||| |4.506.1 Each bathroom shall be provided with the following:
  1. ENERGY STAR fans ducted to terminate outside the building.
  2. Fans must be controlled by a humidity control (separate or built-
  in); OR functioning as a component of a whole-house ventilation
  system.
  3. Humidity controls with manual or automatic means of
  adjustment, capable of adjustment between a relative humidity
  range of≤ 50 percent to a maximum of 80 percent.||||
  |
  |
  | |A4.506.1 Reserved.||||||| |A4.506.2 [HR] Provide filters on return air openings rated MERV 8 or
  higher during construction when it is necessary to use HVAC
  equipment.||||||| |A4.506.3 Direct-vent appliances shall be used when equipment is
  located in conditioned space; or the equipment must be installed in
  an isolated mechanical room.||||||| |Environmental Comfort||||||| |4.507.2 Duct systems are sized, designed and equipment is selected
  using the following methods:
  1. Establish heat loss and heat gain values according to ANSI/ACCA 2
  Manual J-2016 or equivalent.
  2. Size duct systems according to ANSI/ACCA 1 Manual D-2016
  or equivalent.
  3. Select heating and cooling equipment according to ANSI/ACCA 3
  Manual S-2014 or equivalent.

• CALGreen § 203.1.1 High relevance — show source text

  [OSHPD 1]**
  **A6.203.1.1 CALGreen Tier 1. [OSHPD 1]**Buildings must comply with the latest edition of
  “Savings By Design, Healthcare Modeling Procedures.”
  A.5.203.1.2 CALGreen Tier 2. [OSHPD 1] Buildings must exceed the latest edition of “Savings
  By Design, Healthcare Modeling Procedures” by 15 percent.||||| |SECTION A6.204 Prescriptive Measures||||| |**A6.204.1 ENERGY STAR equipment and appliances.**All equipment and appliances provided
  by the builder shall be ENERGY STAR labeled if ENERGY STAR is applicable to that equipment
  or appliance.||||| |A6.204.4 Commissioning. Building commissioning for all building systems covered by T24,
  Part 6, process systems and renewable energy systems shall be included in the design and
  construction processes of the building project. Commissioning requirements shall include as
  a minimum items listed in Section A6.204.4.
  **A6.204.4.1 Owner’s Project Requirements (OPR).**Documented before the design phase of
  the project begins the OPR shall include items listed in Section A6.204.4.
  **A6.204.4.2 Basis of Design (BOD).**A written explanation of how the design of the building
  systems meets the OPR shall be completed at the design phase of the building project and
  updated periodically to cover the systems listed in Section A6.204.4.2.
  **A6.204.4.3 Commissioning plan.**A commissioning plan describing how the project will be
  commissioned shall be started during the design phase of the building project and shall
  include as a minimum items listed in Section A6.204.4.3.
  A6.204.4.4 Functional performance testingshall demonstrate the correct installation and
  operation of each component, system and system-to-system interface in accordance with
  the approved plans and specifications.
  **A6.204.4.5 Post construction documentation and training.**A systems manual and
  systems operations training are required.
  **A6.204.4.5.1 Systems manual.**The systems manual shall be delivered to the building
  owner and facilities operator and shall include the items listed in Section A6.204.4.5.1.
  A6.204.4.5.2 Systems operations training. The training of the appropriate maintenance
  staff for each equipment type and/or system shall include as a minimum items listed in
  Section A6.204.4.5.2.
  **A6.204.4.6 Commissioning report.**A complete report of commissioning process activities
  undertaken through the design, construction and postconstruction phases of the building
  project shall be completed and provided to the owner.||
  
  
  
  
  
  
  
  |
  
  
  
  
  
  
  
  || |**A6.204.6 Building orientation and shading.

• CALGreen § 3-4 High relevance — show source text

  302 Mixed Occupancy Buildings . . . . . . . . . . . . . . . . . . . . . . .3-4 303 Phased Projects. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4 304 Voluntary Tiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4 305 CALGreen Tier 1 and CALGreen Tier 2 . . . . . . . . . . . . . .3-4

  306 Voluntary Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4

  CHAPTER 4 RESIDENTIAL MANDATORY MEASURES . . . . . . 4-3

  4.1 Planning and Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3 4.2 Energy Efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7 4.3 Water Efficiency and Conservation . . . . . . . . . . . . . . . . .4-9 4.4 Material Conservation and Resource Efficiency . . . . 4-11 4.5 Environmental Quality . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

  CHAPTER 5 NONRESIDENTIAL MANDATORY MEASURES . . 5-3

  5.1 Planning and Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3 5.2 Energy Efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15 5.3 Water Efficiency and Conservation . . . . . . . . . . . . . . . 5-19 5.4 Material Conservation and Resource Efficiency . . . . 5-23 5.5 Environmental Quality . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31

  CHAPTER 6 REFERENCED ORGANIZATIONS

  AND STANDARDS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

  601 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3

  CHAPTER 7 INSTALLER AND SPECIAL

  INSPECTOR QUALIFICATIONS . . . . . . . . . . . . . . . . . . . . . . 7-3 701 General (Reserved) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3 702 Qualifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3

• CALGreen § 106.9 High relevance — show source text

  FEATURE OR MEASURE	COMPLIANCE LEVELS	Col3	Col4	NOTES
  FEATURE OR MEASURE	Mandatory CALGreen	VOLUNTARY CALGreen	VOLUNTARY CALGreen	VOLUNTARY CALGreen
  FEATURE OR MEASURE	Mandatory CALGreen	Tier 1	Tier 2	Tier 2
  DIVISION A6.1 – PLANNING AND DESIGN
  SECTION Site Development	SECTION Site Development	SECTION Site Development	SECTION Site Development	SECTION Site Development
  **A6.106.9 Building orientation.**Locate and orient the building as follows: 1. When site and location permit, orient the building with the long sides facing north and south. 2. Protect the building from thermal loss, drafts and degradation of the building envelope caused by wind and wind-driven materials such as dust.			
  DIVISION A6.2 – ENERGY EFFICIENCY
  SECTION A6.203 Performance Measures	SECTION A6.203 Performance Measures	SECTION A6.203 Performance Measures	SECTION A6.203 Performance Measures	SECTION A6.203 Performance Measures
  A6.203.1 Energy performance. [OSHPD 1] **A6.203.1.1 CALGreen Tier 1. [OSHPD 1]**Buildings must comply with the latest edition of “Savings By Design, Healthcare Modeling Procedures.” A.5.203.1.2 CALGreen Tier 2. [OSHPD 1] Buildings must exceed the latest edition of “Savings By Design, Healthcare Modeling Procedures” by 15 percent.			
  SECTION A6.204 Prescriptive Measures
  **A6.204.1 ENERGY STAR equipment and appliances.**All equipment and appliances provided by the builder shall be ENERGY STAR labeled if ENERGY STAR is applicable to that equipment or appliance.			
  A6.204.4 Commissioning. Building commissioning for all building systems covered by T24, Part 6, process systems and renewable energy systems shall be included in the design and construction processes of the building project. Commissioning requirements shall include as a minimum items listed in Section A6.204.4. **A6.204.4.1 Owner’s Project Requirements (OPR).**Documented before the design phase of the project begins the OPR shall include items listed in Section A6.204.4. **A6.204.4.2 Basis of Design (BOD).**A written explanation of how the design of the building systems meets the OPR shall be completed at the design phase of the building project and updated periodically to cover the systems listed in Section A6.204.4.2. **A6.204.4.3 Commissioning plan.

• CALGreen § 301.5 High relevance — show source text

  301.5 Health Facilities. [OSHPD 1, 2 & 4] Health facilities under the jurisdiction of the Office of Statewide Health Planning and Development (OSHPD) are required to comply with the mandatory measures prescribed in Section 5.304, Outdoor Water Use. Compliance with Section 5.304, as adopted by the Building Standards Commission, is enforced by the local agency having jurisdiction. Evidence of local approval shall be submitted to OSHPD prior to issuance of plan approval or a building permit.

  2025 CALIFORNIA GREEN BUILDING STANDARDS CODE 3-3

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

  GREEN BUILDING

  SECTION 302—MIXED OCCUPANCY BUILDINGS

  302.1 Mixed occupancy buildings. In mixed occupancy buildings, each portion of a building shall comply with the specific green building measures applicable to each specific occupancy.

  Exceptions:

  1. [HCD] Accessory structures and accessory occupancies serving residential buildings shall comply with Chapter 4 and Appendix A4, as applicable.
  2. [HCD] For the purposes of CALGreen, live/work units, complying with Section 508.5 of the California Building Code, shall not be considered mixed occupancies. Live/work units shall comply with Chapter 4 and Appendix A4, as applicable.

  SECTION 303—PHASED PROJECTS

  303.1 Phased projects. For shell buildings and others constructed for future tenant improvements, only those code measures relevant to the building components and systems considered to be new construction (or newly constructed) shall apply.

  303.1.1 Initial tenant improvements. The provisions of this code shall apply only to the initial tenant improvements to a project. Subsequent tenant improvements shall comply with the scoping provisions in Section 301.3 nonresidential additions and alterations.

  SECTION 304—VOLUNTARY TIERS

  304.1 Purpose. Voluntary tiers are intended to further encourage building practices that improve public health, safety and general welfare by promoting the use of building concepts which minimize the building’s impact on the environment and promote a more sustainable design.

  304.1.1 Tiers. The provisions of Divisions A4.6 and A5.6 outline means, in the form of voluntary tiers, for achieving enhanced construction levels by incorporating additional measures for residential and nonresidential new construction. Voluntary tiers may be adopted by local governments and, when adopted, enforced by local enforcing agencies. Buildings complying with tiers specified for each occupancy contain additional prerequisite and elective green building measures necessary to meet the threshold of each tier. See Section 101.7 of this code for procedures and requirements related to local amendments, additions or deletions, including changes to energy standards.

  [BSC & HCD] Where there are practical difficulties involved in complying with the threshold levels of a tier, the enforcing agency may grant modifications for individual cases. The enforcing agency shall first find that a special individual reason makes the strict letter of the tier impractical and that modification is in conformance with the intent and purpose of the measure. The details of any action granting modification shall be recorded and entered in the files of the enforcing agency.

  SECTION 305 [OSHPD 1]— CALGreen TIER 1 AND CALGreen TIER 2

  305.1 CALGreen Tier 1 and CALGreen Tier 2 buildings contain voluntary green building measures necessary to meet the threshold of each level.

• CALGreen § 602.1 High relevance — show source text

  VOLUNTARY MEASURES. . . . . . . . . . . . . . . . . APPENDIX A5-3

  A5.1 Planning and Design . . . . . . . . . . . . . . . . . APPENDIX A5-3 A5.2 Energy Efficiency . . . . . . . . . . . . . . . . . . . APPENDIX A5-13 A5.3 Water Efficiency and Conservation . . . APPENDIX A5-19 A5.4 Material Conservation and Resource Efficiency . . . . . . . . . . . . . . . . . . . . . . . . APPENDIX A5-25 A5.5 Environmental Quality . . . . . . . . . . . . . . APPENDIX A5-35 A5.6 Voluntary Tiers . . . . . . . . . . . . . . . . . . . . . APPENDIX A5-41 A5.601 CALGren Tier 1 and Tier 2. . . . . . . . . . APPENDIX A5-41

  A5.602 CALGreen Verification Guidelines Mandatory Measures Checklist . . . . . . . . . . . . . . . APPENDIX A5-44

  A5.602.1 CALGreen Verification Guidelines

  Tier 1 Checklist . . . . . . . . . . . . . . . . . APPENDIX A5-48

  A5.602.2 CALGreen Verification Guidelines

  Tier 2 Checklist . . . . . . . . . . . . . . . . . APPENDIX A5-55

  APPENDIX A6 VOLUNTARY STANDARDS FOR HEALTH

  FACILITIES [OSHPD 1, 2 & 4] . . . . . . . . . . . APPENDIX A6.1-3 A6.1 Site Planning and Design . . . . . . . . . . . APPENDIX A6.1-3 A6.2 Energy Efficiency . . . . . . . . . . . . . . . . . . APPENDIX A6.1-3 A6.4 Material Conservation and Resource Efficiency . . . . . . . . . . . . . APPENDIX A6.1-32 A6.5 Environmental Quality . . . . . . . . . . . . APPENDIX A6.1-33

  INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INDEX-1

  HISTORY NOTE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HIST-1

  2025 CALIFORNIA GREEN BUILDING STANDARDS CODE vii

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

  viii 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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

  CALIFORNIA GREEN BUILDING STANDARDS CODE – MATRIX ADOPTION TABLE

  CHAPTER 1 – ADMINISTRATION

  (Matrix Adoption Tables are nonregulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)

  |Adopting

• CALGreen § 5.410.2.1 High relevance — show source text

  Independent Third-Party Commissioning Professional— A commissioning consultant contracted directly by the owner who is not responsible to, or affiliated with, any other member of the design and construction team.

  Operation and Maintenance (O&M) Manuals— Documents that provide information necessary for operating and maintaining installed equipment and systems.

  Owner Representative— An individual or entity assigned by the owner to act and sign on the owner’s behalf.

  Process Equipment— Energy-using equipment and components that are not used for HVAC, electrical, plumbing and irrigation operations. Such devices would include but are not limited to heat transfer, water purifying, air cleaning, air vacuum and air compressing.

  Sequence of Operation— A written description of the intended performance and operation of each control element and feature of the equipment and systems.

  Selecting Trained Personnel (for Commissioning)

  This code requires that “Commissioning shall be performed in accordance with this section by trained personnel with experience on projects of comparable size and complexity.” The trained personnel manage and facilitate the commissioning process. The trained personnel develop and implement the commissioning tasks and documentation identified in Sections 5.410.2.1 through 5.410.2.6. Trained personnel may include appropriate members of owner staff, contractor and design team as well as independent commissioning professionals.

  It is essential that there is a single person designated to lead and manage the commissioning activities. In practice, this individual has been referenced by various identifiers such as commissioning authority, agent, provider, coordinator, lead, etc. In this guide the term “commissioning coordinator” is used.

  The designated commissioning coordinator may be an independent, third-party commissioning professional, a project design team member (e.g., engineer or architect), an owner’s engineer or facility staff, contractor or specialty subcontractor. Methods of evaluating the designated commissioning coordinator and trained personnel include review of the following:

  1. Technical knowledge;
  2. Relevant experience;
  3. Potential conflict of interest concerns;
  4. Professional certifications and training;
  5. Communication and organizational skills; and
  6. Reference and sample work products.

  8-14 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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

  COMPLIANCE FORMS, WORKSHEETS AND REFERENCE MATERIAL

  Selection of “trained,” qualified personnel is required by this code. In order to meet this requirement, the commissioning provider should be evaluated via the methods discussed above. In addition, various organizations have training and certification programs that may be a source for identification of qualified commissioning providers.

  For information about enforcement and compliance of each commissioning element see Sections 5.410.2.1 through 5.410.2.6.

  For compliance forms and templates see Part 2 following this standard.

  Reference: 1 Owner’s Project Requirements

  CALGreen Section 5.410.2.1, Owner’s or Owner representative’s Project Requirements (OPR).

  1.1 Intent:

  The Owner’s Project Requirements (OPR) documents the functional requirements of a project and expectations of the building use and operation as it relates to systems being commissioned. The document describes the physical and functional building characteristics desired by the owner and establishes performance and acceptance criteria. The OPR is most effective when developed during predesign and used to develop the Basis of Design (BOD) during the design process. The level of detail and complexity of the OPR will vary according to building use, type and systems.

  1.2 Compliance Method:

• CALGreen § 8-14 High relevance — show source text

  8-14 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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

  COMPLIANCE FORMS, WORKSHEETS AND REFERENCE MATERIAL

  Selection of “trained,” qualified personnel is required by this code. In order to meet this requirement, the commissioning provider should be evaluated via the methods discussed above. In addition, various organizations have training and certification programs that may be a source for identification of qualified commissioning providers.

  For information about enforcement and compliance of each commissioning element see Sections 5.410.2.1 through 5.410.2.6.

  For compliance forms and templates see Part 2 following this standard.

  Reference: 1 Owner’s Project Requirements

  CALGreen Section 5.410.2.1, Owner’s or Owner representative’s Project Requirements (OPR).

  1.1 Intent:

  The Owner’s Project Requirements (OPR) documents the functional requirements of a project and expectations of the building use and operation as it relates to systems being commissioned. The document describes the physical and functional building characteristics desired by the owner and establishes performance and acceptance criteria. The OPR is most effective when developed during predesign and used to develop the Basis of Design (BOD) during the design process. The level of detail and complexity of the OPR will vary according to building use, type and systems.

  1.2 Compliance Method:

  Compliance is demonstrated by the owner or owner’s representative developing and/or approving the Owner’s Project Requirements (OPR) document and can be defined as follows:

  1. Environmental and Sustainability Goals—Establish environmental project goals and objectives exceeding the code for the project’s sustainability, which may include: a. CALGreen voluntary measures or Tiers sought, or other specific green building rating system or program credits and/or level of certification sought b. Specific environmental or sustainability goals such as water efficiency, water reuse, CO 2 monitoring, xeriscaping, etc.
  2. Building Sustainable Goals—Establish goals and targets affecting energy efficiency, which may include: a. Measures affecting building sustainability desired by owner i. Building orientation and siting ii. Daylighting iii. Facade, envelope and fenestration

  iv. Roof

  v. Natural ventilation

  vi. Onsite renewable power generation and net-zero energy use vii. Landscaping and shading 3. Indoor Environmental Quality Requirements—For each program space describe indoor environmental requirements including intended use and anticipated schedule, and the following: a. Temperature and humidity

  b. Acoustics

  c. Air quality, ventilation and filtration d. Desired adjustability of system controls

  e. Accommodations for after-hours use

  f. Other owner requirements including natural ventilation, operable windows, daylight, views, etc. 4. Project Program, including facility functions and hours of operation, and need for after-hours operation—Describe primary purpose, program and use of proposed project include the following: a. Building size, number of stories, construction type, occupancy type and number b. Building program areas including intended use and anticipated occupancy schedules c. Future expandability and flexibility of spaces d. Quality and/or durability of materials and building lifespan desired e. Budget or operational constraints f. Applicable codes 5. Equipment and Systems Expectations—Describe the following for each system commissioned: a. Level of quality, reliability, equipment type, automation, flexibility, maintenance and complexity desired b. Specific efficiency targets, desired technologies or preferred manufacturers for building systems, acoustics and vibration c. Degree of system integration, automation and functionality for controls 6.

• CALGreen § 8-40 High relevance — show source text

  . . . . . . . . . . . . . 8-40

  APPENDIX A4 RESIDENTIAL

  VOLUNTARY MEASURES. . . . . . . . . . . . . . . . . APPENDIX A4-3

  A4.1 Planning and Design . . . . . . . . . . . . . . . . . APPENDIX A4-3 A4.2 Energy Efficiency . . . . . . . . . . . . . . . . . . . . APPENDIX A4-9 A4.3 Water Efficiency and Conservation . . . APPENDIX A4-13 A4.4 Material Conservation and Resource Efficiency . . . . . . . . . . . . . . . . . . . . . . . . APPENDIX A4-15 A4.5 Environmental Quality . . . . . . . . . . . . . . APPENDIX A4-19 A4.6 Tier 1 and Tier 2 . . . . . . . . . . . . . . . . . . . . APPENDIX A4-21

  Division A4.6—Residential Occupancies Application Checklist . . . . . . . . . . . . . APPENDIX A4-23 A4.7 Residential Model Ordinance . . . . . . . . . APPENDIX A4-31

  APPENDIX A5 NONRESIDENTIAL

  VOLUNTARY MEASURES. . . . . . . . . . . . . . . . . APPENDIX A5-3

  A5.1 Planning and Design . . . . . . . . . . . . . . . . . APPENDIX A5-3 A5.2 Energy Efficiency . . . . . . . . . . . . . . . . . . . APPENDIX A5-13 A5.3 Water Efficiency and Conservation . . . APPENDIX A5-19 A5.4 Material Conservation and Resource Efficiency . . . . . . . . . . . . . . . . . . . . . . . . APPENDIX A5-25 A5.5 Environmental Quality . . . . . . . . . . . . . . APPENDIX A5-35 A5.6 Voluntary Tiers . . . . . . . . . . . . . . . . . . . . . APPENDIX A5-41 A5.601 CALGren Tier 1 and Tier 2. . . . . . . . . . APPENDIX A5-41

  A5.602 CALGreen Verification Guidelines Mandatory Measures Checklist . . . . . . . . . . . . . . . APPENDIX A5-44

  A5.602.1 CALGreen Verification Guidelines

  Tier 1 Checklist . . . . . . . . . . . . . . . . . APPENDIX A5-48

  A5.602.2 CALGreen Verification Guidelines

  Tier 2 Checklist . . . . . . . . . . . . . . . . . APPENDIX A5-55

  APPENDIX A6 VOLUNTARY STANDARDS FOR HEALTH

• CALGreen § 203.1.2.1 Medium relevance — show source text

  In addition, a minimum of two of
  the efficiency measures specified in Sections A4.203.1.2.1 through
  A4.203.1.2.8 will be required to be met.
  · Roof Deck Insulation or Ducts in Conditioned Space.
  · High-performance Walls.
  · Compact Hot Water Distribution System.
  · Drain Water Heat Recovery.
  · High Performance Vertical Fenestration.
  · Heat Pump Water Heater Demand Management.
  · Battery Storage System Controls.
  · **Heat Pump Space and Water Heating.||2|2|||| |**A4.203.1.3 Consultation with local electric service provider.**Local
  jurisdictions considering adoption of reduced EDR targets based on
  using solar photovoltaic (PV) systems larger than required by the
  California Energy Code shall consult with the local electric service
  provider to ensure that that PV system sizing required to comply with
  the EDR targets will be acceptable to the local electric service
  provider.||2|2||||

  2025 CALIFORNIA GREEN BUILDING STANDARDS CODE APPENDIX A4-25

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

  APPENDIX A4 — RESIDENTIAL VOLUNTARY MEASURES

  SECTION A4.602—RESIDENTIAL OCCUPANCIES APPLICATION CHECKLIST—continued

  FEATURE OR MEASURE	LEVELS APPLICANT TO SELECT ELECTIVE MEASURES	Col3	Col4	VERIFICATIONS ENFORCING AGENCY TO SPECIFY VERIFICATION METHOD	Col6	Col7
  FEATURE OR MEASURE	Mandatory	Prerequisites and electives1	Prerequisites and electives1	Enforcing Agency  All	Installer or Designer  All	Third party  All
  FEATURE OR MEASURE	Mandatory	Tier 1	Tier 2	Tier 2	Tier 2	Tier 2
  WATER EFFICIENCY AND CONSERVATION
  Indoor Water Use
  4.303.1Plumbing fixtures (water closets and urinals) and fittings (showerheads, faucets and pre-rinse spray valves) installed in residential buildings shall comply with the prescriptive requirements of Sections 4.303.1.1 through 4.303.1.4.5.						
  4.303.2 Submeters for multifamily building and dwelling units in **mixed-use residential/commercial buildings.