amounts made available pursuant to subsection (a), the Secretary may waive, or specify alternative requirements for, any provision of any statute or regulation (except for any requirements related to fair housing, nondiscrimination, labor standards, and the environment) that the Secretary administers in connection with the obligation or use by the recipient of such amounts, if the Secretary finds that good cause exists for the waiver or alternative requirement and such waiver or alternative requirement is consistent with the purposes described in this subsection. (2) Effectiveness