CFR > Title 31 - Money and Finance: Treasury > SUBTITLE B—Regulations Relating to Money and Finance > CHAPTER IV—SECRET SERVICE, DEPARTMENT OF THE TREASURY (parts 401 to 413) > PART 403—AUTHORIZATION OF ALL BANKS, U.S. POST OFFICES, AND DISBURSING OFFICERS OF THE UNITED STATES AND THEIR AGENTS TO DELIVER TO THE TREASURY DEPARTMENT COUNTERFEIT OBLIGATIONS AND OTHER SEC