21 U.S.C. § 855
In lieu of a fine otherwise authorized by this part, a defendant who derives profits or other proceeds from an offense may be fined not more than twice the gross profits or other proceeds.
(Pub. L. 91–513, title II, § 415, as added Pub. L. 98–473, title II, § 2302, , 98 Stat. 2193.)