Section 63.12 - Offenses involving alcohol or drugs(a) A conviction for the violation of any Federal or state statute relating to the growing, processing, manufacture, sale, disposition, possession, transportation, or importation of narcotic drugs, marihuana, or depressant or stimulant drugs or substances is grounds for- (1) Denial of an application for any certificate or rating issued under this part for a period of up to 1 year after the date of final conviction; or(2) Suspension or revocation of any certificate or rating issued under this part.(b) The commission of an act prohibited by § 91.17(a) or § 91.19(a) of this chapter is grounds for-(1) Denial of an application for a certificate or rating issued under this part for a period of up to 1 year after the date of that act; or(2) Suspension or revocation of any certificate or rating issued under this part.Doc. No. 21956, 50 FR 15379, Apr. 17, 1985, as amended by Amdt. 63-27, 54 FR 34330, Aug. 18, 1989