HUD Handbook 4350.3 § 4-23

A.       Once an owner has solicited applications and developed a waiting list for
                 applicants for whom no unit is immediately available, the owner must select
                 applicants from the waiting list and offer units in the order required by HUD rules
                 and owner policies. This section describes options for the owner and provides
                 guidance on how to carry out these activities.

        B.       When a unit becomes vacant, the owner must select the next applicant from the
                 waiting list based on the unit size available, preferences established for the
                 property, income-targeting policies and requirements, *disclosure and verification
                 of SSN(s)* and screening policies applied by the owner. The owner will select
                 the first name on the waiting list for the appropriate unit size (or list of names for
                 units reserved for disabled applicants) and make a final determination of eligibility
                 and suitability for tenancy, using the criteria described in Chapter 3, Sections 1
                 and 2, and the procedures in this section.