District of Columbia Administrative Code

NORMATIVE APPENDIX G G3 CALCULATION OF THE PROPOSED DESIGN AND BASELINE BUILDING PERFORMANCE G3.1 Building Performance Calculations. The simulation model for calculating the proposed and baseline building performance shall be developed in accordance with the requirements in Table…

APPENDIX Z NET-ZERO ENERGY COMPLIANCE PATH Z1 GENERAL. Appendix Z is intended to be an optional alternative compliance path for building projects to comply with the Energy Conservation Code-Commercial Provisions. The design of a net-zero energy building shall be achieved through …

APPENDIX Z NET-ZERO ENERGY COMPLIANCE PATH Z2 MINIMUM PERFORMANCE REQUIREMENTS. Minimum performance requirements for building energy use intensity have been set to ensure maximum energy efficiency prior to adding renewable energy generation. The building and its site shall be des…

APPENDIX Z NET-ZERO ENERGY COMPLIANCE PATH Z3 RENEWABLE ENERGY. The building and building site shall be provided with renewable energy equal to the EUIP on an annual basis and calculated in accordance with Section Z2.1.1. Sources of renewable energy shall comply with Sections Z3.…

APPENDIX Z NET-ZERO ENERGY COMPLIANCE PATH Z4 ENERGY METERING, MONITORING AND REPORTING Z4.1. Scope. The provisions of this Section Z4 shall apply to all building projects that opted for Appendix Z as a path of code compliance. Z4.2. Purpose. The purpose of this Section Z4 is to …

APPENDIX Z NET-ZERO ENERGY COMPLIANCE PATH Z5 ENERGY REPORTING. Owners of buildings that used Appendix Z as a path for code compliance shall comply with this Section. Z5.1. Post Occupancy Measurement and Reporting. Z5.1.1. Owners of buildings that use Appendix Z as a path for cod…

APPENDIX Z NET-ZERO ENERGY COMPLIANCE PATH Z6 NORMATIVE REFERENCES Section numbers indicate where the reference occurs in Appendix Z. See below: U.S. Army Corps of Engineers Standard Reference number Title Referenced in code section number Version 3: 2012-05-11 Air Leakage Test P…

APPENDIX RA RECOMMENDED PROCEDURE FOR WORST-CASE TESTING OF ATMOSPHERIC VENTING SYSTEMS Appendix RA to the International Energy Conservation Code is adopted in the District of Columbia as APPENDIX RA, RECOMMENDED PROCEDURE FOR WORST-CASE TESTING OF ATMOSPHERIC VENTING SYSTEMS, to…

APPENDIX RB SOLAR-READY PROVISIONS SECTION RB101 SCOPE RB101.1 General. These provisions shall be applicable for new construction and Level 3 alteration affecting 80% or more of the aggregate area of the building. SOURCE: Final Rulemaking published at 67 DCR 6326 (May 29, 2020 – …

APPENDIX RB SOLAR-READY PROVISIONS SECTION RB102 DEFINITIONS RB102.1 General. For purposes of this Appendix, the following terms are defined as follows: SOLAR-READY ZONE. A section or sections of the roof or building overhang designated and reserved for the future installation of…

APPENDIX RB SOLAR-READY PROVISIONS SECTION RB103 SOLAR-READY ZONE RB103.1 General. A residential building with a roof area of 600 square feet (55.74 m2) or more oriented between 110 degrees and 270 degrees of true north shall comply with Sections RB103.2 through RB103.8. Exceptio…

PART 1—SCOPE AND APPLICATION R101 SCOPE AND GENERAL REQUIREMENTS R101.1 General. Administration and enforcement of the Energy Conservation Code-Residential Provisions shall be governed by Chapter 1 of the Building Code, Title 12-A DCMR. R101.2 Scope. The scope of the Energy Conse…

R202 DEFINITIONS Strike the definitions for Energy Simulation Tool, Energy Cost and High-Efficacy Lamps in Section R202 of the International Energy Conservation Code in their entirety and insert new definitions for Energy Modeling Software and High Efficacy Lamps in the Energy Co…

R301 DISTRICT OF COLUMBIA CLIMATE ZONE Strike Section R301 in its entirety, including all Tables, in the International Energy Conservation Code and insert new Sections R301 and R301.1, and new Figure R301.1, in the Energy Conservation Code-Residential Provisions in its place to r…

R302 DESIGN CONDITIONS R302.1 Interior design conditions. The interior design temperatures used for heating and cooling load calculations shall be a maximum of 72°F (22°C) for heating and minimum of 75°F (24°C) for cooling. SOURCE: Final Rulemaking published at 67 DCR 6326 (May 2…

R303 MATERIALS, SYSTEMS, AND EQUIPMENT R303.1 Identification. Materials, systems and equipment shall be identified in a manner that will allow a determination of compliance with the applicable provisions of this code. R303.1.1 Building thermal envelope insulation. An R-value iden…

R401 GENERAL Strike Sections R401.2 and R401.3 of the International Energy Conservation Code in their entirety and insert new Sections R401.2 and R401.3 into the Energy Conservation Code-Residential Provisions in their place to read as follows: R401.2 Compliance. Projects shall c…

R402 BUILDING THERMAL ENVELOPE Strike Section R402.1 of the International Energy Conservation Code in its entirety and insert new Section R402.1 in the Energy Conservation Code-Residential Provisions in its place to read as follows: R402.1 General (Prescriptive). The building the…

R403 SYSTEMS Strike Section R403.3.1 of the International Energy Conservation Code in its entirety and insert new Section R403.3.1 in the Energy Conservation Code-Residential Provisions in its place to read as follows. R403.3.1 Insulation (Mandatory). Supply and return ducts outs…

R404 ELECTRICAL POWER LIGHTING SYSTEMS Strike Sections R404.1 and R404.1.1 of the International Energy Conservation Code in their entirety and insert new Sections R404.1 and R404.1.1 in the Energy Conservation Code-Residential Provisions in their place to read as follows. R404.1 …

R405 ADDITIONAL EFFICIENCY PACKAGE R405.1 Requirements. New buildings shall comply with at least one of the following: Enhanced HVAC performance in accordance with Section R405.2. Enhanced Building Envelope in accordance with Section R405.3. Enhanced Air Leakage and Heat Recovery…

R406 ENERGY RATING INDEX COMPLIANCE ALTERNATIVE Strike Section R406.2 (including Table R406.2) of the International Energy Conservation Code in their entirety and insert new Section R406.2 and Table R406.2 in the Energy Conservation Code-Residential Provisions in their place to r…

R501 GENERAL Strike Sections R501.1 through 501.6 of the International Energy Conservation Code in their entirety and insert new Section R501.1 in the Energy Conservation Code-Residential Provisions in its place to read as follows. R501.1 Scope. The scope and intent of this chapt…

R502 ADDITIONS Strike Section R502.1.2 of the International Energy Conservation Code in its entirety and insert new Section R502.1.2 in the Energy Conservation Code-Residential Provisions in its place to read as follows. R502.1.2 Existing plus addition compliance (Energy Rating I…

R503 ALTERATIONS Strike Section R503.1.1 of the International Energy Conservation Code and insert new Section R503.1.1 in the Energy Conservation Code-Residential Provisions in its place to read as follows. R503.1.1 Building envelope. Building envelope assemblies that are part of…

CHAPTER 6[RE] REFERENCED STANDARDS ASTM ASTM International 100 Barr Harbor West Conshohocken, PA 19428-2959 Insert the following new standard references in Chapter 6 [RE] of the Energy Conservation Code-Residential Provisions under subheading ASTM to read as follows: Standard ref…

101 GENERAL 101.1 Scope and Intent. The scope and intent of the Existing Building Code shall be governed by Chapter 1 of the Building Code, Title 12-A DCMR 101.2 Administration and enforcement of the Existing Building Code shall be governed by Chapter 1 of the Building Code, Titl…

1012 CHANGE OF OCCUPANCY CLASSIFICATION Insert new Section 1012.1.5 in the Existing Building Code to read as follows: 1012.1.5 Air-borne sound. All buildings undergoing a change of occupancy classification shall comply with Section 903.4. SOURCE: Final Rulemaking published at 67 …

1102 HEIGHTS AND AREAS Strike Section 1102.3 of the International Existing Building Code in its entirety and insert new Section 1102.3 in the Existing Building Code to read as follows: 1102.3 Fire protection systems. Existing fire areas increased by the addition shall comply with…

1501 GENERAL 1501.1 Scope. The provisions of Chapter 33 of the Building Code shall govern safety during construction that is under the jurisdiction of this code and the protection of adjacent public and private properties. SOURCE: Final Rulemaking published at 67 DCR 6491 (May 29…

202 GENERAL DEFINITIONS Strike the definitions for ADDITION, EXISTING BUILDING, and WORK AREA in the International Existing Building Code in their entirety and insert a new definition for each in the Existing Building Code in their place to read as follows: ADDITION. An extension…

403 ALTERATIONS Strike Section 403.3.1 of the International Existing Building Code in its entirety and insert new Section 403.3.1 in the Existing Building Code in its place to read as follows: 403.3.1 Design live load. Where the alteration does not result in increased design live…

704 MEANS OF EGRESS Insert a new Section 704.2 into the Existing Building Code to read as follows: 704.2 Allowance for Fire Resistance Upgrading. When improving the fire resistance rating of the enclosure of stairways, exit access corridors or exit passageways complying with Sect…

801 GENERAL Strike Section 801.1 of the International Existing Building Code in its entirety and insert a new Section 801.1 into the Existing Building Code in its place to read as follows: 801.1 Scope. Level 2 alterations as described in Section 504 shall comply with the requirem…

804 FIRE PROTECTION Strike Section 804.3 of the International Existing Building Code in its entirety and insert new Section 804.3 in the Existing Building Code in its place to read as follows: 804.3 Standpipes. Where the work area includes exits or corridors located more than 50 …

805 MEANS OF EGRESS Strike Section 805.3.1.1 of the International Existing Building Code in its entirety and insert new Section 805.3.1.1 to the Existing Building Code in its place to read as follows: 805.3.1.1 Single-exit buildings. Only one exit is required from buildings and s…

902 SPECIAL USE AND OCCUPANCY Strike Section 902.1 of the International Existing Building Code in its entirety and insert a new Section 902.1 into the Existing Building Code in its place to read as follows: 902.1 High-rise buildings. Any building having occupied floors more than …

903 BUILDING ELEMENTS AND MATERIALS Insert a new Section 903.4 into the Existing Building Code to read as follows: 903.4 Air-borne sound. Walls, partitions and floor/ceiling assemblies separating dwelling units and sleeping units from each other or from public or service areas sh…

904 FIRE PROTECTION Strike Section 904.1.1 of the International Existing Building Code in its entirety and insert a new Section 904.1.1 into the Existing Building Code in its place to read as follows: 904.1.1 High-rise buildings. An automatic sprinkler system shall be provided in…

909 VENTILATION Strike Section 909.1 of the International Existing Building Code in its entirety and insert new Section 909.1in its place in the Existing Building Code to read as follows. 909.1 Ventilation required. Where an existing dwelling unit is undergoing a Level 3 alterati…

A101 GENERAL Strike Section A101.1 in Appendix A of the International Green Construction in its entirety and insert new Section A101.1 in Appendix A of the Green Construction Code in its place to read as follows: A101.1 Scope. Appendix A shall only apply to projects within the sc…

A102 APPLICABILITY AND CONFORMANCE Strike Section A102.2 in Appendix A of the International Green Construction Code in its entirety and insert new Section A102.2 in Appendix A of the Green Construction Code in its place to read as follows: A102.2 Required number and selection of …

A104 SITE PROJECT ELECTIVES Strike Table A104, Site Project Electives, in Appendix A of the International Green Construction Code in its entirety and insert new Table A104 in its place in Appendix A of the Green Construction Code to read as follows: TABLE A104 SITE PROJECT ELECTI…

A105 MATERIAL RESOURCE CONSERVATION AND EFFICIENCY Strike Table A105 in Appendix A of the International Green Construction Code in its entirety and insert new Table A105 in Appendix A of the Green Construction Code in its place to read as follows: TABLE A105 MATERIAL RESOURCE CON…

A106 ENERGY CONSERVATION, EFFICIENCY AND EARTH ATMOSPHERIC QUALITY Strike Table A106 in Appendix A of the International Green Construction Code in its entirety and insert new Table A106 in Appendix A in the Green Construction Code in its place to read as follows: TABLE A106 ENERG…

A107 WATER RESOURCE CONSERVATION AND EFFICIENCY Strike Table A107 in Appendix A of the International Green Construction Code in its entirety and insert new Table A107 in Appendix A of the Green Construction Code in its place to read as follows: TABLE A107 WATER RESOURCE CONSERVAT…

A108 INDOOR ENVIRONMENTAL QUALITY AND COMFORT Strike Table A108 in Appendix A of the International Green Construction Code in its entirety and insert new Table A108 in Appendix A of the Green Construction Code in its place to read as follows: TABLE A108 INDOOR ENVIRONMENTAL QUALI…

101 GENERAL 101.1 Scope and intent. Scope and intent of the Green Construction Code shall be governed by Chapter 1 of the Building Code, Title 12-A DCMR. 101.2 Administration and enforcement. Administration and enforcement of the Green Construction Code shall be governed by Chapt…

CHAPTER 10 EXISTING BUILDINGS Strike Chapter 10 of the International Green Construction Code in its entirety without substitution. SOURCE: Final Rulemaking published at 67 DCR 6509 (May 29, 2020 – Part 2). The District of Columbia Green Construction Code (2017), referred to as th…

CHAPTER 11 EXISTING BUILDINGS SITE DEVELOPMENT Strike Chapter 11 of the International Green Construction Code in its entirety without substitution. SOURCE: Final Rulemaking published at 67 DCR 6509 (May 29, 2020 – Part 2). The District of Columbia Green Construction Code (2017), …