Section 101.21 - Applicability(a) This subpart applies to operating unmanned rockets. However, a person operating an unmanned rocket within a restricted area must comply with § 101.25(g)(2) ) and with any additional limitations imposed by the using or controlling agency.(b) A person operating an unmanned rocket other than an amateur rocket as defined in § 1.1 of this chapter must comply with 14 CFR Chapter III.Doc. No. FAA-2007-27390, 73 FR 73781 , Dec. 4, 2008, as amended by Docket No. FAA-2022-1355, Amdt. No. 101-11, 87 FR 75846 , Dec. 9, 2022 As amended by Docket No. FAA-2022-1355, Amdt. No. 101-9, 87 FR 75846 , 12/9/2022