Resource September 18, 2014 CMS Medicare Part D HCP Memo to Sponsors : Rescheduling of Hydrocodone Combination Products from Schedule III to Schedule II On August 22, 2014, the DEA issued a final rule (79 FR 49661) in which they rescheduled hydrocodone combination products (HCPs) from schedule III to schedule II of the Controlled Substances Act as of October 6, 2014. Government/Legal Affairs, Legislation & Regulation, Medicare Part D