The key regulations governing EPCs are the Energy Performance of Buildings (England and Wales) Regulations 2012 (EPC Regs 2012), SI 2012/3118, as amended and the Building Regulations 2010, SI 2010/2214, which implement the requirements of the recast Energy Performance of Buildings Directive 2010/31/EU, (recast EPBD directive). EPC Regs 2012 apply to all buildings across England and Wales. Original lease An EPC is required under the EPC Regs 2012, SI 2012/3118, reg 6, whenever a property is sold or rented out. Under reg 6(2), the seller or the prospective landlord must make available free of charge a valid EPC to any prospective buyer or tenant: • at the earliest