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District of Columbia Municipal Regulations
Title 12
12-E
D.C. Mun. Regs. tit. 12-E
Mechanical Code Supplement of 2017
District of Columbia, Office of the Secretary
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12-E1
Scope and Administration
12-E2
Definitions
12-E4
Ventilation
12-E5
Exhaust Systems
12-E6
Duct Systems
12-E8
Chimneys and Vents
12-E9
Specific Appliances, Fireplaces and Solid Fuel-burning Equipment
12-E10
Boilers, Water Heaters and Pressure Vessels
12-E11
Refrigeration
12-E15
Referenced Standards