; and (iii) resolution of a major certification process milestone elevated pursuant to clause (ii) within a specific period of time agreed to by the Administrator and the type certificate applicant. (C) Major certification process milestone defined In this paragraph, the term major certification process milestone means a milestone related to a type certification basis, type certification plan, type inspection authorization, issue paper, or other major type certification activity agreed to by the Administrator and the type certificate applicant. . (b) Technical amendment Section 44704 of title 49, United States Code, is amended in the section heading by striking airworthiness certificates,, and inserting airworthiness certificates, . 215. Review of certification process for small general aviation airplanes (a) In general Not later than 1 year after the date of enactment of this Act, the Inspector General of the Department of Transportation shall initiate a review of the Federal Aviation Administration’s implementation of the final rule titled Revision of Airworthiness Standards for Normal, Utility, Acrobatic, and Commuter Category Airplanes (81 Fed. Reg. 96572). (b) Considerations In carrying out the review, the Inspector General shall assess— (1) how the rule puts into practice the Administration’s efforts to implement performance and risk-based safety standards; (2) whether the Administration’s implementation of the rule has improved safety and reduced the regulatory cost burden for the Administration and the aviation industry