(a) [(1)] Prosecution for any violation of law occurring prior to May 21, 1971 is not affected or abated by this chapter. If the offense being prosecuted is similar to one set out in Article IV of this chapter, then the penalties under Article IV apply if they are less than those under prior law.

(b) [(2)] Civil seizures or forfeitures and injunctive proceedings commenced prior to May 21, 1971 are not affected by this chapter.

(c) [(3)] All administrative proceedings pending under prior laws which are superseded by this chapter shall be continued and brought to a final determination in accord with the laws and rules in effect prior to May 21, 1971. Any substance controlled under prior law which is not listed within Schedules I through V, is automatically controlled without further proceedings and shall be listed in the appropriate schedule.

(d) [(4)] The commission shall initially permit persons to register who own or operate any establishment engaged in the manufacture, distribution, or dispensing of any controlled substance prior to May 21, 1971 and who are registered or licensed by the state.

(e) [(5)] This chapter applies to violations of law, seizures and forfeiture, injunctive proceedings, administrative proceedings and investigations which occur following May 21, 1971.