47 CFR § 87.301 - Supplemental eligibility.
(a) The following entities are eligible for flight test station licenses:
(1) Manufacturers of aircraft or major aircraft components;
(2) A parent corporation or its subsidiary if either corporation is a manufacturer of aircraft or major aircraft components; or
(3) Educational institutions and persons primarily engaged in the design, development, modification, and flight test evaluation of aircraft or major aircraft components.
(b) Each application must include a certification sufficient to establish the applicant's eligibility under the criteria in paragraph (a) of this section.