13 C.F.R. § 121.512
A concern is small for this purpose if:
[61 FR 3286, Jan. 31, 1996, as amended at 67 FR 3056, Jan. 23, 2002; 70 FR 72594, Dec. 6, 2005; 73 FR 41254, July 18, 2008; 79 FR 33669, June 12, 2014; 84 FR 34281, July 18, 2019; 87 FR 69154, Nov. 17, 2022]