The regulations in this part set forth the procedures and requirements applicable to the authorization and supervision under 51 U.S.C. Subtitle V, chapter 509, of commercial space transportation activities conducted in the United States or by a U.S. citizen. The regulations in this chapter do not apply to amateur rockets activities, as defined in 14 CFR 1.1, or to space activities carried out by the United States Government on behalf of the United States Government. [Doc. No. FAA-2012-0232, 77 FR 20532, Apr. 5, 2012]