for order to active duty based upon determination by Congress Whenever Congress determines that more units and organizations capable of conducting space operations are needed for the national security than are available among those units comprised of members of the Space Force serving on active duty, members of the Space Force not serving on active duty shall be ordered to active duty and retained as long as so needed. . 1716. Officers (a) Original appointments Subtitle F of title 10, United States Code, as amended by section 1715, is further amended by adding at the end the following new chapter: 2005 OFFICERS I ORIGINAL APPOINTMENTS 20201. Original appointments: how made (a) In general The provisions of section 531 of this title shall apply to original appointments of commissioned officers in the Space Force. (b) Grade upon appointment (1) The grade of a person receiving an appointment under this section who at the time of appointment is credited with service under section 20203 of this title shall be determined under regulations prescribed by the Secretary of the Defense based upon the amount of service credited. (2) The grade of a person receiving an appointment under this section who at the time of the appointment is a commissioned officer of a reserve component shall be determined under section 20203(e) of this title. 20202. Original appointments: qualifications (a) In general An original appointment as a commissioned officer in the Space Force may be given only to a person who— (1) is a citizen of the United States