Form 3 is the official document issued to Russian citizens who are staying at a temporary address (not their permanent "Propiska") for more than 90 days.
: You will need your Russian passport and proof of temporary residence (e.g., a rental contract).
: Issued for a specific period agreed upon with the property owner.
: The MVD processes the request and prints the Form 3 certificate for you.
Справка о проживающих в жилом помещении - Госуслуги
: Legal databases like ConsultantPlus or Garant provide the official template as defined by MVD Order No. 984.