On March 17, 2016, The mayor of the District of Columbia has signed a bill to ban two chlorinated flame retardants from most household items.

The Carcinogenic Flame Retardant Prohibition Amendment Act (B21-143) prohibits the manufacture, sale or distribution of products containing TDCPP and TCEP:

※ in children's products and residential upholstered furniture, at concentrations above 0.1% by mass, by 1 January 2018; and

※ in “any product containing more than 0.1% by mass in any product component”, with some exceptions, by 1 January 2019.

Pursuant to laws governing the District of Columbia, the measure will be subject to a 30-day review by Congress before it can become law.

Exemptions: Motor vehicles, replacement parts or replacement equipment for motor vehicles; Commercial or residential building insulation or wiring; Desktop and laptop computers, audio and video equipment, calculators, wireless telephones, game consoles, handheld devices incorporating a screen that are used to access interactive software and their associated peripherals, and cables, adaptors, and other similar connecting devices; Storage media, such as compact discs, for interactive software, such as computer games.

“Children’s product” means a consumer product: Marketed for use by children under 12 years of age or the substantial use of which by a child under 12 years of age is reasonably foreseeable.

“Residential upholstered furniture” means furniture intended for use in a home or other dwelling that includes cushioning material covered by fabric or similar material.