Medicare General Information, Eligibility and Entitlement Manual (Pub. 100-01), Ch. 7 § 40
Shared System Maintainer, Part A/Part B (A/B)/Durable Medical
40 – Shared System Maintainer, Part A/Part B (A/B)/Durable Medical
Equipment (DME) Medicare Administrative Contractor (MAC) and the
Single Testing Contractor (STC) Responsibilities for System Releases
(Rev. 97, Issued: 01-15-16, Effective: 09-21-15, Implementation: 09-21-15)