Cats are far less likely than dogs to be targeted by breed-specific legislation, and the Donskoy is not subject to the kind of ownership bans that affect certain dog breeds in some jurisdictions. There is generally no law preventing an individual from keeping a Donskoy as a household pet where cat ownership itself is permitted.
That said, the broad legal landscape for cats is shaped by general animal-welfare and companion-animal statutes rather than breed-specific rules. These laws set baseline expectations for care, shelter, and humane treatment that apply to every cat regardless of breed.
Prospective owners should remember that local rules vary widely. The information here is general and educational, not legal advice, and anyone with a specific question about their area should consult their local authority or a qualified professional.