14 CFR § 399.73
Definition of small business for Regulatory Flexibility Act
July 13, 2020
For the purposes of the Department's implementation of chapter 6 of title 5, United States Code (Regulatory Flexibility Act), a direct air carrier or foreign air carrier is a small business if it provides air transportation only with small aircraft as defined in §298.2 of this chapter (up to 60 seats/18,000 pound payload capacity).
[Doc. No. OST-96-1429, 61 FR 29019, June 7, 1996, as amended by Doc. No. DOT-OST-2014-0140, 84 FR 15947, Apr. 16, 2019]