The Environmental Protection Agency sent a memorandum June 11 to tire manufacturers unveiling a new process for verifying low-rolling-resistance retread tires on large trucks that will lead to freight industry emissions reductions. The verification process, run by the agency’s SmartWay program, will confirm that retreading makes the vehicles using the tires 3 percent more fuel-efficient than they would be if they were using the next-best tire. The agency will immediately accept applications for retreading technologies.