42 C.F.R. § 493.1469
The cytology general supervisor must be qualified to supervise cytology services. The general supervisor in cytology must possess a current license issued by the State in which the laboratory is located, if such licensing is required, and must—
(b)
[55 FR 9576, Mar. 14, 1990, as amended at 88 FR 90044, Dec. 28, 2023]