42 U.S.C. § 14332

Limitations on sale of alkaline-manganese batteries containing mercury

No person shall sell, offer for sale, or offer for promotional purposes any alkaline-manganese battery manufactured on or after May 13, 1996 , with a mercury content that was intentionally introduced (as distinguished from mercury that may be incidentally present in other materials), except that the limitation on mercury content in alkaline-manganese button cells shall be 25 milligrams of mercury per button cell.

( Pub. L. 104–142, title II, § 203 , May 13, 1996 , 110 Stat. 1336 .)