Quantity Prescribed (460-ET) Guidance The final rule CMS-0055-F published on January 24, 2020, adopts a modification of the requirements for the use of the Telecommunication Standard Implementation Guide, Version D, Release 0 (Version D.0), August 2007, National Council for Prescription Drug Programs, by requiring covered entities to use the Quantity Prescribed (460-ET) field for retail pharmacy transactions for Schedule II drugs. This change constitutes a modification to the use of the adopted standard, not a modification to the standard itself. Compliance Date: September 21, 2020 Refer to the following important additional references CMS-0055-F NCPDP SNIP Guidance NCPDP Payer Sheet Template (update pending) Recommended Use of Quantity Prescribed (460-ET) in NCPDP Telecommunication Standard Version D.0’ White Paper (update pending)