The FAA announced today a 45-day extension to the comment period on a notice of proposed rulemaking (NPRM) for repair stations that would revise the system of ratings and require Part 145-certified repair stations to establish a quality assurance program. The agency also proposes requiring a repair station to maintain a capability list, designating a chief inspector and having permanent housing for its facilities, equipment, materials and personnel. In addition, this proposal specifies those instances in which the FAA can deny a repair station certificate. Lastly, the agency proposes to clarify recent revisions to the repair station regulations. At press time, about 35 comments had been submitted by individuals, repair stations and parts manufacturers. To date, the Aeronautical Repair Station Association was the only trade group to comment, requesting the comment period extension. The new deadline for comments is April 16.