The Chairman shall be responsible on behalf of the Commission for the administrative operations of the Commission and shall appoint such administrative law judges and other employees as he deems necessary to assist in the performance of the Commission’s functions and to fix their compensation in accordance with the provisions of chapter
51 and subchapter
III of chapter
53 of title
5 relating to classification and General Schedule pay rates: Provided, That assignment, removal and compensation of administrative law judges shall be in accordance with sections
3105,
3344,
5372, and
7521 of title
5.