Pub. L. 86-682, tit. 39, pt. V, ch. 81, sec. 5008
Undeliverable C. O. D. parcels
§ 5008. Undeliverable C. O. D. parcels (a) The Postmaster General may return to the sender charged with return postage a collect-on-delivery article that the addressee fails to remove from the post office within fifteen days from the 74 Stat. 680 first attempt to deliver or the first notice of arrival at the office of address, regardless of whether the parcel bears a specified time limit for delivery. He may collect a demurrage charge when delivery has not been made to either the addressee or the sender until after the expiration of the prescribed period. He may not charge demurrage on collect-on-delivery articles exchanged between post offices in the continental United States and post offices in the Commonwealth of Puerto Rico, the Territories and possessions of the United States. (b) The Postmaster General may direct the immediate return to the sender, charged with return postage, of an undeliverable collect-on-delivery article.