FAA - 14 CFR PART 25
Airworthiness standards: transport category airplanes
|Publication Date:||1 January 2013|
Applicability. Contrary provisions of the Civil Air Regulations regarding certification notwithstanding, 1 this regulation shall provide the basis for approval by the Administrator of modifications of individual Douglas DC-3 and Lockheed L-18 airplanes subsequent to the effective date of this regulation.
1 It is not intended to waive compliance with such airworthiness requirements as are included in the operating parts of the Civil Air Regulations for specific types of operation.