In a unified information system in the sphere of purchases (EIS) should be registered the participants of contractual system and other persons using EIS for implementation of the powers under the Law N 44-FL and the Law N 223-FL (except for participants of purchases).
If data on the organization are not included in the summary register, before registration it will need to pass identification and authentication in special information system. Forms of requests for registration the Federal Treasury will post EIS on the official site.
Document: The order of Federal Treasury from 12/30/2015 N 27 N
I have come into force on May 30, 2016