The Secretary shall establish procedures which are appropriate and necessary to assure that income data provided to public housing agencies and owners by families applying for or receiving assistance under this section is complete and accurate. In establishing such procedures, the Secretary shall randomly, regularly, and periodically select a sample of families to authorize the Secretary to obtain information on these families for the purpose of income verification, or to allow those families to provide such information themselves. Such information may include, but is not limited to, data concerning unemployment compensation and Federal income taxation and data relating to benefits made available under the Social Security Act [
42 U.S.C.
301 et seq.], the Food and Nutrition Act of 2008 [
7 U.S.C.
2011 et seq.], or title 38. Any such information received pursuant to this subsection shall remain confidential and shall be used only for the purpose of verifying incomes in order to determine eligibility of families for benefits (and the amount of such benefits, if any) under this section.