(a) Violations.— A person violating section
70503 of this title shall be punished as provided in section 1010 of the Comprehensive Drug Abuse Prevention and Control Act of 1970 (
21 U.S.C.
960). However, if the offense is a second or subsequent offense as provided in section 1012(b) of that Act (
21 U.S.C.
962 (b)), the person shall be punished as provided in section 1012 of that Act (
21 U.S.C.
962).