allocated under this section as excepted units that do not count against the percentage limitation on the number of authorized units a public housing agency may project-base under section 8(o)(13)(B) of the United States Housing Act of 1937, in accordance with the conditions established by the Secretary. This paragraph may not be construed to waive, limit, or specify alternative requirements, or permit such waivers, limitations, or alternative requirements, related to fair housing and nondiscrimination, including the requirement to provide housing and services to individuals with disabilities in integrated settings. (6) Homeless waiver authority In administering the voucher assistance targeted for households experiencing or at risk of homelessness, survivors of domestic violence, dating violence, sexual assault, and stalking, and survivors of trafficking under subsection (a)(2), the Secretary may, upon a finding that a waiver or alternative requirement is necessary to facilitate the use of such assistance, waive or specify alternative requirements for— (A) section 8(o)(6)(A) of the United States Housing Act of 1937 ( 42 U.S.C. 1437f(o)(6)(A) ) and regulatory provisions related to the administration of waiting lists and local preferences