14 C.F.R. § 405.5
The Associate Administrator may immediately terminate, prohibit, or suspend a licensed or permitted launch, reentry, or operation of a launch or reentry site if the Associate Administrator determines that—
[53 FR 11014, Apr. 4, 1988, as amended by Amdt. 405-1, 65 FR 56657, Sept. 19, 2000; Amdt. 405-3, 72 FR 17017, Apr. 6, 2007]