District of Columbia Administrative Code

905 STANDPIPE SYSTEMS Strike Section 905.2 of the International Building Code in its entirety and insert new Section 905.2 in the Building Code in its place to read as follows: 905.2 Installation standard. Standpipe systems shall be installed in accordance with this section and N…

906 PORTABLE FIRE EXTINGUISHERS Strike Section 906.1 in the International Building Code in its entirety and insert a new Section 906.1 in the Building Code in its place to read as follows: 906.1 Where required. Portable fire extinguishers shall be installed in all of the followin…

907 FIRE ALARM AND DETECTION SYSTEMS Strike Section 907.3.3 of the International Building Code in its entirety and insert new Section 907.3.3 in the Building Code in its place to read as follows: 907.3.3 Elevator emergency operation. Automatic fire detectors and all fire alarm sy…

908 EMERGENCY ALARM SYSTEMS Strike Sections 908.1 and 908.2 of the International Building Code in their entirety and insert new Sections 908.1 and 908.2 to the Building Code in their place to read as follows: 908.1 General. The systems required by this section shall be designed a…

909 SMOKE CONTROL SYSTEMS Strike Section 909.16 of the International Building Code; do not strike Subsections 909.16.1 through 909.16.3 of the International Building Code. Insert new Section 909.16 and accompanying Exception in the Building Code to read as follows: 909.16 Fire-fi…

911 FIRE COMMAND CENTER Strike Section 911.1 of the International Building Code in its entirety and insert new Section 911.1 in the Building Code in its place to read as follows: 911.1 General. Where required by other sections of this code and in buildings classified as high-rise…

913 FIRE PUMPS Insert a new Exception 3 into Section 913.2.1 of the Building Code to read as follows: Access to the fire pump room shall not be required to be directly from the exterior or from a fire rated enclosure. SOURCE: Final Rulemaking published at 67 DCR 5690 (May 29, 202…

Insert new Section 917 in the Building Code to read as follows: 917 FIRE APPARATUS ACCESS ROADS 917.1 General. Fire apparatus access roads shall be provided and maintained in accordance with Section 503 of the Fire Code. SOURCE: Final Rulemaking published at 67 DCR 5690 (May 29, …

Insert new Section 918 in the Building Code to read as follows: 918 KEY BOXES 918.1 General. Key boxes shall be provided and maintained in accordance with Section 506 of the Fire Code. 918.2 Where required. Key boxes are required where access to or within a structure or an area i…

AE101 SCOPE Insert a new Section AE101.2 into Appendix E of the Residential Code to read as follows: AE101.2 Administration and enforcement. Administration and enforcement of Appendix E shall be governed by Chapter 1 of the Building Code, Title 12-A DCMR, which is hereby incorpor…

AE302 APPLICATION FOR PERMIT Strike Section AE302 in Appendix E of the Residential Code in its entirety without substitution. SOURCE: Final Rulemaking published at 67 DCR 6033 (May 29, 2020 – Part 2). The District of Columbia Residential Code (2017), referred to as the “Residenti…

AE303 PERMITS ISSUANCE Strike Section AE303 in Appendix E of the Residential Code in its entirety without substitution. SOURCE: Final Rulemaking published at 67 DCR 6033 (May 29, 2020 – Part 2). The District of Columbia Residential Code (2017), referred to as the “Residential Cod…

AE304 FEES Strike Section AE304 in Appendix E of the Residential Code in its entirety without substitution. SOURCE: Final Rulemaking published at 67 DCR 6033 (May 29, 2020 – Part 2). The District of Columbia Residential Code (2017), referred to as the “Residential Code,” consists…

AF101 SCOPE Strike Section AF101.1 in Appendix F of the International Residential Code in its entirety and insert new Section AF101.1 in Appendix F of the Residential Code in its place to read as follows: AF101.1 General. Radon-resistant construction built in accordance with Sect…

AF103 PASSIVE RADON-RESISTANT SYSTEM REQUIREMENTS Strike Section AF103.3.2 in Appendix F of the International Residential Code in its entirety and insert new Section AF103.3.2 in Appendix F of the Residential Code in its place to read as follows: AF103.3.2 “T” fitting and vent pi…

APPENDIX H PATIO COVERS Appendix H, Patio Covers, of the International Residential Code, is adopted in its entirety in the District of Columbia as Appendix H of the Residential Code. SOURCE: Final Rulemaking published at 67 DCR 6033 (May 29, 2020 – Part 2). The District of Columb…

APPENDIX K SOUND TRANSMISSION Appendix K, Sound Transmission, of the International Residential Code is adopted in its entirety in the District of Columbia as Appendix K of the Residential Code. SOURCE: Final Rulemaking published at 67 DCR 6033 (May 29, 2020 – Part 2). The Distric…

AM101 GENERAL AM101.1 General. This appendix shall apply to home day care facilities: (a) operated in dwelling units within existing detached one and two-family dwellings and townhouses within the scope of the Residential Code and within R-3 dwellings, and (b) occupied by persons…

AM102 DEFINITIONS AM102.1 General. For the purpose of this Appendix M, the terms used shall be defined as follows: EXIT. That portion of a means of egress system between the exit access and the exit discharge or public way. Exit components include exterior exit doors at the level…

AM103 MEANS OF EGRESS AM103.1 Means of egress. The means of egress from each level of the one and two family dwelling unit used as a home day care occupancy shall comply with this section. AM103.1.1 Below grade level. Below grade levels shall be provided with two means of egress,…

AM104 SMOKE DETECTION AM104.1 General. Smoke alarms shall be installed in all dwellings used for home day care. Smoke alarms shall be installed in accordance with Section R313. In addition to the locations required by Section R313 smoke alarms shall be installed in all areas used…

AM105 CARBON MONOXIDE DETECTION AM105.1 General. Carbon monoxide alarms shall be installed in all dwellings used for home day care equipped with a fuel burning appliance or an attached garage. Carbon monoxide alarms shall be installed in accordance with Section R315. SOURCE: Fina…

AM106 OCCUPANT LOAD AM106.1 Maximum number of occupants. The maximum number of occupants allowed in a home day care facility shall be determined by the square footage of those portions of the dwelling unit legally used for home day care activities. The occupant load factor shall …

AM107 FIRE EXTINGUISHERS AM107.1 General. Multi-purpose fire extinguishers of a type approved for use in residences must be maintained in good working condition and installed in the kitchen and outside the furnace room of the dwelling. The caregivers must know how to use the fire…

AM108 FIRE SAFETY AND EVACUATION PLANS AM108.1 Submission of plan. Prior to operation, the home day care provider must submit a written fire safety and evacuation plan to the code official, using a form furnished by the code official or an approved equivalent form. The plan, as a…

AM109 INTERIOR FINISH, DECORATIVE MATERIALS AND FURNISHINGS AM109.1 General. The selected interior finishes, decorative materials and furnishings for home day care facilities shall comply with Chapter 8 of the Fire Code. SOURCE: Final Rulemaking published at 67 DCR 6033 (May 29, …

R101 GENERAL R101.1 Scope and Intent. The scope and intent of the Residential Code shall be governed by Chapter 1 of the Building Code, Title 12-A DCMR. R101.2 Administration and Enforcement. Administration and enforcement of the Residential Code shall be governed by Chapter 1 of…

N1101 GENERAL Strike Chapter 11 of the International Residential Code in its entirety and insert a new Chapter 11 in the Residential Code in its place to read as follows: N1101.1 General. Buildings regulated by this code shall comply with the Energy Conservation Code-Residential …

M1201 GENERAL Strike Section M1201.2 of the International Residential Code in its entirety and insert a new Section M1201.2 into the Residential Code in its place to read as follows: M1201.2 Administrative requirements. The provisions of Chapter 1 of the Building Code, Title 12-A…

M1502 CLOTHES DRYER EXHAUST Strike Section M1502.4.2 of the International Residential Code in its entirety and insert a new Section M1502.4.2 into the Residential Code in its place to read as follows: M1502.4.2 Duct installation. Exhaust ducts shall be supported at intervals not …

M1503 RANGE HOODS Strike Section M1503.1 of the International Residential Code in its entirety and insert a new Section M1503.1 into the Residential Code in its place to read as follows: M1503.1 General. Range hoods or down-draft exhaust systems shall be required above ranges and…

M1601 DUCT CONSTRUCTION Strike Section M1601.1.1 in the International Residential Code in its entirety and insert a new Section M1601.1.1 in its place in the Residential Code to read as follows: M1601.1.1 Above-ground duct systems. Above-ground duct systems shall conform to the f…

R202 DEFINITIONS Insert the following new definitions into Section R202 of the Residential Code to read as follows: REUSE. The application of used building materials on a project. Reuse shall not include incineration, nor use of materials as alternative daily cover at a disposal …

G2411 (310) ELECTRICAL BONDING Strike Sections G2411.1 through G2411.1.1.5 of the International Residential Code in their entirety and insert new Sections G2411.1 through G2411.3 in their place in the Residential Code to read as follows. G2411.1 (310.1) Pipe and tubing other than…

G2401 GENERAL Strike Section G2401.1 of the International Residential Code in its entirety and insert a new Section G2401.1 into the Residential Code in its place to read as follows: G2401.1 General. Administration, enforcement and scope of Part VI – Fuel Gas of the Residential C…

P2501 GENERAL P2501.1 General. The provisions of Chapter 1 of the Building Code, Title 12-A DCMR shall establish the general administrative requirements applicable to plumbing systems and inspection requirements of the Residential Code. The administrative provisions of Chapter 1 …

P2603 STRUCTURAL AND PIPING PROTECTION Strike Sections P2603.5 and P2603.5.1 in the International Residential Code in their entirety and insert new Sections P2603.5 and P2603.5.1 in the Residential Code in their place to read as follows: P2603.5 Freezing. A water, soil or waste p…

P2902 PROTECTION OF POTABLE WATER SUPPLY Strike Section P2902.5.4 of the International Residential Code in its entirety and insert new Section P2902.5.4 in the Residential Code in its place to read as follows: P2902.5.4 Connections to automatic fire sprinkler systems. The potable…

P2903 WATER-SUPPLY SYSTEM Strike Table P2903.2 of the International Residential Code in its entirety and insert new Table P2903.2 in the Residential Code in its place to read as follows: TABLE P2903.2 MAXIMUM FLOW RATES AND CONSUMPTION FOR PLUMBING FIXTURES AND FIXTURE FITTINGSb …

P2909 DRINKING WATER TREATMENT UNITS Strike Section P2909.1 of the International Residential Code in its entirety and insert new Section P2909.1 in the Residential Code in its place to read as follows: P2909.1 Design. Drinking water treatment units shall meet the requirements of …

2910 NONPOTABLE WATER SYSTEMS General. Nonpotable water systems shall comply with Chapter 13 of the Plumbing Code. SOURCE: Final Rulemaking published at 68 DCR 007439 (July 30, 2021). The District of Columbia Residential Code (2017), referred to as the “Residential Code,” consist…

R301 DESIGN CRITERIA Strike Table R301.2(1), Climatic and Geographic Design Criteria, in the International Residential Code in its entirety and insert new Table R301.2(1) in the Residential Code in its place to read as follows: TABLE R301.2(1) CLIMATIC AND GEOGRAPHIC DESIGN CRITE…

R303 LIGHT, VENTILATION AND HEATING Strike Section R303.1 of the International Residential Code in its entirety and insert new Section R303.1 in the Residential Code in its place to read as follows: R303.1 Habitable spaces. All habitable spaces shall have an aggregate glazing are…

R310 EMERGENCY ESCAPE AND RESCUE OPENINGS Strike Section R310.1 of the International Residential Code in its entirety and insert new Section R310.1 to the Residential Code in its place to read as follows: R310.1 Emergency escape and rescue opening required. Basements, habitable a…

R313 AUTOMATIC FIRE SPRINKLER SYSTEMS R313.1 Townhouse automatic fire sprinkler systems. An automatic residential fire sprinkler system shall be installed in townhouses. R313.1.1 Design and installation. Automatic residential fire sprinkler systems for townhouses shall be designe…

R319 SITE ADDRESS R319.1 Address Numbers. Premises shall comply with the provisions set forth in Section 118, 12-A DCMR, governing street numbering and addresses. SOURCE: Final Rulemaking published at 67 DCR 6033 (May 29, 2020 – Part 2). The District of Columbia Residential Code …

R324 SOLAR ENERGY SYSTEMS Insert new Section R324.7 in the Residential Code to read as follows: R324.7 Roof access and pathways. Roof access, pathways and setback requirements shall be provided in accordance with Sections R324.7.1 through R324.7.2. Access and minimum spacing shal…

R327 MATERIAL REUSE R327.1 Material Reuse. A new construction, addition, raze, or Level 3 alteration project (“the project”) shall comply with Sections R327.1.1, R327.1.2 and R327.1.3. For purposes of Section R327, nonhazardous waste shall not include lead-painted materials. Exce…

P3005 DRAINAGE SYSTEM Strike Section P3005.2 of the International Residential Code, but retain Subsections P3005.2.1 through P3005.2.11. Insert a new Section P3005.2 into the Residential Code to read as follows: P3005.2 Drainage pipe cleanouts. Drainage pipe cleanouts shall compl…

P3008 BACKWATER VALVES Strike Section P3008.1 of the International Residential Code in its entirety and insert a new Section P3008.1 into the Residential Code in its place to read as follows: P3008.1 General. Where plumbing fixtures are installed on a floor with a finished floor …