; the seeds thereof; the resin extracted from any part of such plant; and every compound, manufacture, salt, derivative, mixture, or preparation of such plant, its seeds or resin; and (2) does not include— (A) hemp, as defined in section 297A of the Agricultural Marketing Act of 1946; (B) the mature stalks of such plant, fiber produced from such stalks, oil or cake made from the seeds of such plant, any other compound, manufacture, salt, derivative, mixture, or preparation of such mature stalks (except the resin extracted therefrom), fiber, oil, or cake, or the sterilized seed of such plant which is incapable of germination; or (C) any drug product approved under section 505 of the Federal Food, Drug, and Cosmetic Act, or biological product licensed under section 351 of the Public Health Service Act. (c) Conforming amendments to immigration and nationality act The Immigration and Nationality Act ( 8 U.S.C. 1101 et seq. ) is amended— (1) in section 212(h), by striking and subparagraph (A)(i)(II) of such subsection insofar as it relates to a single offense of simple possession of 30 grams or less of marijuana ; (2) in section 237(a)(2)(B)(i), by striking other than a single offense involving possession for one’s own use of 30 grams or less of marijuana ; (3) in section 101(f)(3), by striking (except as such paragraph relates to a single offense of simple possession of 30 grams or less of marihuana) ; (4) in section 244(c)(2)(A)(iii)(II) by striking except for so much of such paragraph as relates to a single offense of simple possession of 30 grams or less of marijuana ; (5) in section 245(h)(2)(B) by striking (except for so much of such paragraph as related to a single offense of simple possession of 30 grams or less of marijuana) ; (6) in section 210(c)(2)(B)(ii)(III) by striking , except for so much of such paragraph as relates to a single offense of simple possession of 30 grams or less of marihuana