14 C.F.R. § 35.43 Special tests.
Title 14 - Aeronautics and Space
The Administrator may require any additional tests he finds necessary to substantiate the use of any unconventional features of design, material, or construction.
Title 14: Aeronautics and Space
PART 35—AIRWORTHINESS STANDARDS: PROPELLERS
Subpart C—Tests and Inspections
§ 35.43 Special tests.