1503. RANGE HOODS

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 cooktops. Range hoods and down-draft exhaust systems shall discharge to the outdoors through a duct. The duct serving the hood shall have a smooth interior surface, shall be airtight, shall be equipped with a back-draft damper and shall be independent of all other exhaust systems. Ducts serving range hoods or down-draft exhaust systems shall not terminate in an attic or crawl space or areas inside the building. Exception: Where a minimum 100 cfm intermittent kitchen exhaust mechanical system is otherwise provided in accordance with Section M1507.4, listed and labeled ductless range hoods installed in accordance with the manufacturer’s instructions shall not be required to discharge to the outdoors. 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 of the 2015 edition of the International Residential Code (International Residential Code), published by the International Code Council (ICC), as amended by the Residential Code Supplement of 2017 (12-B DCMR). The International Residential Code is copyrighted by the ICC and therefore is not republished here. However, a copy of the text may be obtained at https://codes.iccsafe.org/public/document/IRC2015. District of Columbia Municipal Regulations Residential Code Supplement of 2017 12-B DCMR § M1503