21 U.S.C. § 901
Severability
If a provision of this chapter is held invalid, all valid provisions that are severable shall remain in effect. If a provision of this chapter is held invalid in one or more of its applications, the provision shall remain in effect in all its valid applications that are severable.
( Pub. L. 91–513, title II, § 706 , Oct. 27, 1970 , 84 Stat. 1284 .)