Except as otherwise specifically authorized under this subpart no project owner or PHA that owns or manages a project for the elderly or persons with disabilities may:

(a) As a condition of tenancy or otherwise, prohibit or prevent any tenant of such housing from owning common household pets or having such pets living in the tenant's dwelling unit; or

(b) Restrict or discriminate against any person in connection with admission to, or continued occupancy of, such housing by reason of the person's ownership of common household pets or the presence of such pets in the person's dwelling unit.