41 U.S.C. § 5 : US Code - Section 5: Advertisements for proposals for purchases and contracts for supplies or services for Government departments; application to Government sales and contracts to sell and to Government corporations

Search 41 U.S.C. § 5 : US Code - Section 5: Advertisements for proposals for purchases and contracts for supplies or services for Government departments; application to Government sales and contracts to sell and to Government corporations

Unless otherwise provided in the appropriation concerned or other
law, purchases and contracts for supplies or services for the
Government may be made or entered into only after advertising a
sufficient time previously for proposals, except (1) when the
amount involved in any one case does not exceed $25,000, (2) when
the public exigencies require the immediate delivery of the
articles or performance of the service, (3) when only one source of
supply is available and the Government purchasing or contracting
officer shall so certify, or (4) when the services are required to
be performed by the contractor in person and are (A) of a technical
and professional nature or (B) under Government supervision and
paid for on a time basis. Except (1) as authorized by section 1638
(!1) of Appendix to title 50, (2) when otherwise authorized by law,
or (3) when the reasonable value involved in any one case does not
exceed $500, sales and contracts of sale by the Government shall be
governed by the requirements of this section for advertising.
In the case of wholly owned Government corporations, this section
shall apply to their administrative transactions only.