Advertisements not to be published without written authority

Advertisements, notices, or proposals for an executive department of the Government, or for a bureau or office connected with it, may not be published in a newspaper except under written authority from the head of the department; and a bill for advertising or publication may not be paid unless there is presented with the bill a copy of the written authority. (Source: (Pub. L. 90–620, Oct. 22, 1968, 82 Stat. 1305.))