When purchasing design and exploration work, and also works on construction, reconstruction and overhaul the participant of state procurement will have to confirm membership in self-regulatory organization. Admissions of SRO won't work.
For contracts worth no more than 3 million rubles for construction, reconstruction and overhaul membership in SRO won't be required.
Document: The federal law from 7/3/2016 N 372-FZ (I have come into force on July 1, 2017, except for separate provisions)