The Administrator may, for the purposes of carrying out the responsibilities of the Administrator under this chapter, establish not more than 1,200 contracting, program management, scientific, engineering, and technical positions in the Administration, appoint individuals to such positions, and fix the compensation of such individuals. Subject to the limitations in the preceding sentence, the authority of the Administrator to make appointments and fix compensation with respect to positions in the Administration under this section shall be equivalent to, and subject to the limitations of, the authority under