The General Contractor and all subcontractors for FHA-insured new construction or substantial rehabilitation transactions are required to comply with federal wage and reporting requirements under the Davis-Bacon Act and the Copeland Act. Davis-Bacon requires the payment of prevailing wage rates and regulations under the Copeland Act require the submission of weekly certified payroll reports. Additionally, Davis-Bacon Wage rates do not apply to off-site improvements, nor do they apply to any site demolition or improvements completed prior to the creation of a federal nexus, defined as the submission of either a pre-application or firm commitment application to HUD.