124 STAT. 3776 PUBLIC LAW 111–350—JAN. 4, 2011 on Rules and Administration of the Senate, the Secretary and the Sergeant at Arms and Doorkeeper of the Senate may enter into— (1) contracts for the procurement of severable services for a period that begins in one fiscal year and ends in the next fiscal year to the same extent and under the same conditions as the head of an executive agency under the authority of section 3902 of this title; and (2) multiyear contracts for the acquisition of property and services to the same extent and under the same conditions as executive agencies under the authority of section 3903 of this title. (f) CAPITOL POLICE.—The United States Capitol Police may enter into— (1) contracts for the procurement of severable services for a period that begins in one fiscal year and ends in the next fiscal year to the same extent as the head of an executive agency under the authority of section 3902 of this title; and (2) multiyear contracts for the acquisitions of property and nonaudit-related services to the same extent as executive agen- cies under the authority of section 3903 of this title. (g) ARCHITECT OF THE CAPITOL.—The Architect of the Capitol may enter into— (1) contracts for the procurement of severable services for a period that begins in one fiscal year and ends in the next fiscal year to the same extent as the head of an executive agency under the authority of section 3902 of this title; and (2) multiyear contracts for the acquisitions of property and nonaudit-related services to the same extent as executive agen- cies under the authority of section 3903 of this title. (h) SECRETARY OF THE SMITHSONIAN INSTITUTION.—The Secretary of the Smithsonian Institution may enter into— (1) contracts for the procurement of severable services for a period that begins in one fiscal year and ends in the next fiscal year under the authority of section 3902 of this title; and (2) multiyear contracts for the acquisition of property and services under the authority of section 3903 of this title. § 3905. Cost contracts (a) COST-PLUS-A-PERCENTAGE-OF-COST CONTRACTS DIS- ALLOWED.—The cost-plus-a-percentage-of-cost system of contracting shall not be used. (b) COST-PLUS-A-FIXED-FEE CONTRACTS.— (1) IN GENERAL.—Except as provided in paragraphs (2) and (3), the fee in a cost-plus-a-fixed-fee contract shall not exceed 10 percent of the estimated cost of the contract, not including the fee, as determined by the agency head at the time of entering into the contract. (2) EXPERIMENTAL, DEVELOPMENTAL, OR RESEARCH WORK.— The fee in a cost-plus-a -fixed-fee contract for experimental, developmental, or research work shall not exceed 15 percent of the estimated cost of the contract, not including the fee. (3) ARCHITECTURAL OR ENGINEERING SERVICES.—The fee in a cost-plus-a-fixed-fee contract for architectural or engineering services relating to any public works or utility project may include the contractor’s costs and shall not exceed 6 percent of the estimated cost, not including the fee, as determined
