The prohibition in 225.770-2 does not apply to items acquired-
(a) In connection with a visit to the People's Republic of China by a vessel or an aircraft of the U.S. armed forces;(b) For testing purposes; or(c) For the purpose of gathering intelligence.
48 C.F.R. §225.770-3
71 FR 53046, 9/8/2006; as amended at 83 FR 66072, 12/21/2018