Pub. L. 113-6, div. E, tit. V, sec. 503

Sec. 503. No part of any funds appropriated in this Act shall be used by an agency of the executive branch, other than for normal and recognized executive-legislative relationships, for publicity or propaganda purposes, and for the preparation, distribution, or use of any kit, pamphlet, booklet, publication, radio, television, or film presentation designed to support or defeat legislation pending before Congress, except in presentation to Congress itself.