; (B) reevaluate existing assumptions and practices inherent in the amended type certificate process and assess whether such assumptions and practices are valid; and (C) ensure, to the greatest extent practicable, that Federal regulations relating to the issuance of amended type certificates are harmonized with the regulations of other international states of design. (b) Amended type certificate report and rulemaking (1) Report on certificate management team efforts Not later than 18 months after the date of enactment of this Act, the Administrator shall submit a report to the congressional committees of jurisdiction on the efforts by the Certificate Management Team to modify and harmonize policies and regulations relating to the issuance of amended type certificates. (2) Initiation of action Not later than 2 years after the date of enactment of this Act, the Administrator shall revise and improve the process of issuing amended type certificates in accordance with this section. Such action may include the revision of guidance, the initiating of a rulemaking, or such other action as the Administrator determines necessary to implement this section. (3) Contents In taking an action required under paragraph (2), the Administrator shall— (A) consider— (i) the findings and work of the Certificate Management Team and other similar international harmonization efforts; (ii) any relevant covered recommendations (as defined in section 22); and (iii) whether a fixed time beyond which a type certificate may not be amended would improve aviation safety