; and (2) by inserting after subsection (b) the following: (c) Periodic reviews (1) In general Not less than once every 7 years, the Administrator shall conduct a comprehensive review of the capability of each ODA holder for the design of an aircraft, aircraft engine, propeller, or appliance pursuant to a delegation by the Administrator under section 44702(d) to meet the requirements of subpart D of part 183 of title 14, Code of Federal Regulations, based on the holder’s organizational structures, requirements applicable to officers and employees, and safety culture. (2) Contents of review A comprehensive review under this subsection shall include an assessment of the effectiveness of, and organization-wide adherence to, an ODA holder’s procedures manual and voluntary safety reporting system. . 7. Limitations on delegation Section 44702(d) of title 49, United States Code, is amended by adding at the end the following: (4) Notwithstanding any other provision of law, the Administrator may not delegate a matter under this subsection— (A) with respect to the certification of the design of a novel or unusual design feature that results in a major change to a type design, except when the Administrator determines— (i) a matter is a routine task; or (ii) during the course of the certification process, that a matter no longer relates to a novel or unusual design feature