; regulations (1) Effective date This section shall become effective upon the date of the enactment of this Act. (2) Regulations Not later than 1 year after the date of the enactment of this Act, the Secretary shall prescribe all regulations required under this section. 8. Stop the Importation and Trafficking of Synthetic Analogues (a) Establishment of Schedule A Section 202 of the Controlled Substances Act ( 21 U.S.C. 812 ) is amended— (1) in subsection (a), by striking five schedules of controlled substances, to be known as schedules I, II, III, IV, and V and inserting six schedules of controlled substances, to be known as schedules I, II, III, IV, V, and A ; (2) in subsection (b), by adding at the end the following: (6) Schedule A (A) In general The drug or substance— (i) has— (I) a chemical structure that is substantially similar to the chemical structure of a controlled substance in schedule I, II, III, IV, or V; and (II) an actual or predicted stimulant, depressant, or hallucinogenic effect on the central nervous system that is substantially similar to or greater than the stimulant, depressant, or hallucinogenic effect on the central nervous system of a controlled substance in schedule I, II, III, IV, or V; and (ii) is not— (I) listed or otherwise included in any other schedule in this section or by regulation of the Attorney General; and (II) with respect to a particular person, subject to an exemption that is in effect for investigational use, for that person, under section 505 of the Federal Food, Drug, and Cosmetic Act ( 21 U.S.C. 355 ) to the extent conduct with respect to such substance is pursuant to such exemption. (B) Predicted stimulant, depressant, or hallucinogenic effect For purpose of this paragraph, a predicted stimulant, depressant, or hallucinogenic effect on the central nervous system may be based on— (i) the chemical structure, structure activity relationships, binding receptor assays, or other relevant scientific information about the substance