Enforcement
When recertifying the income of a family residing in a dwelling unit assisted under this chapter, a public housing agency or owner may choose not to enforce the limitation under paragraph (1) or may establish exceptions to such limitation based on eligibility criteria, but only pursuant to a policy that is set forth in the public housing agency plan under section 1437c–1 of this title for the agency or under a policy adopted by the owner. Eligibility criteria for establishing exceptions may provide for separate treatment based on family type and may be based on different factors, such as age, disability, income, the ability of the family to find suitable alternative housing, and whether supportive services are being provided.