1988—Pub. L. 100–458 substituted “from the account for the Sergeant at Arms and Doorkeeper of the Senate, within the contingent fund of the Senate, an amount not to exceed $300,000:” for “from the contingent fund of the Senate an amount not to exceed $210,000 for:”.

1984—Pub. L. 98–367 substituted “$210,000” for “$60,000”.

1982—Par. (1). Pub. L. 97–257 substituted “the procurement of the services, on a temporary basis, of individual consultants, or organizations thereof, with the prior consent of the Committee on Rules and Administration; such services may be procured by contract with the providers acting as independent contractors, or in the case of individuals, by employment at daily rates of compensation not in excess of the per diem equivalent of the highest gross rate of annual compensation which may be paid to employees of a standing committee of the Senate; and any such contract shall not be subject to the provisions of section 5 of title 41 or any other provision of law requiring advertising; and” for “the procurement of individual consultants, on a temporary or intermittent basis, at a daily rate of compensation not in excess of the per diem equivalent of the highest gross rate of annual compensation which may be paid to employees of a standing committee of the Senate with the prior consent of the Committee on Rules and Administration; and”.