Marriage of the head of the customer and CEO of the participant and also close relationship, the adoption relations will be considered as the conflict of interests. Other cases of the conflict of interests also are listed in the project.
In the Law N 223-FZ, unlike the Law N 44-FZ, there is no ban on participation in procurement under similar circumstances yet.
Document: Draft federal law (http://regulation.gov.ru/projects#npa=70173)
Public discussion comes to the end on August 25, 2017