21 U.S.C. § 903 : US Code - Section 903: Application of State law

Search 21 U.S.C. § 903 : US Code - Section 903: Application of State law

No provision of this subchapter shall be construed as indicating
an intent on the part of the Congress to occupy the field in which
that provision operates, including criminal penalties, to the
exclusion of any State law on the same subject matter which would
otherwise be within the authority of the State, unless there is a
positive conflict between that provision of this subchapter and
that State law so that the two cannot consistently stand together.