All the safeguards provided by law for the protection of public moneys, and all statutes relating to the embezzlement, conversion, improper handling, retention, use, or disposal of postal and money-order funds, false returns of postal and money-order business, forgery, counterfeiting, alteration, improper use or handling of postal and money-order blanks, forms, vouchers, accounts, and records, and the dies, plates, and engravings therefor, with the punishments provided for such offenses are extended and made applicable to postal savings depository business and funds and related matters.

Every foreign mail, while being transported across the territory of the United States under authority of law, is mail of the United States, and any depredation thereon, or offense in respect thereto, shall be punishable as though it were United States mail.

Whoever, being concerned in carrying the mail, collects, receives, or carries any letter or packet, contrary to law, shall be fined under this title or imprisoned not more than thirty days, or both.

Whoever, having charge or control of any conveyance operating by land, air, or water, which regularly performs trips at stated periods on any post route, or from one place to another between which the mail is regularly carried, carries, otherwise than in the mail, any letters or packets, except such as relate to some part of the cargo of such conveyance, or to the current business of the carrier, or to some article carried at the same time by the same conveyance, shall, except as otherwise provided by law, be fined under this title.

Whoever carries any letter or packet on board any vessel which carries the mail, otherwise than in such mail, shall, except as otherwise provided by law, be fined under this title or imprisoned not more than thirty days, or both.

Whoever, having charge or control of any conveyance operating by land, air, or water, knowingly conveys or knowingly permits the conveyance of any person acting or employed as a private express for the conveyance of letters or packets, and actually in possession of the same for the purpose of conveying them contrary to law, shall be fined under this title.

Whoever, having charge or control of any vessel passing between ports or places in the United States, and arriving at any such port or place where there is a post office, fails to deliver to the postmaster or at the post office, within three hours after his arrival, if in the daytime, and if at night, within two hours after the next sunrise, all letters and packages brought by him or within his power or control and not relating to the cargo, addressed to or destined for such port or place, shall be fined under this title.

No vessel arriving within a port or collection district of the United States shall be allowed to make entry or break bulk until all letters on board are delivered to the nearest post office, except where waybilled for discharge at other ports in the United States at which the vessel is scheduled to call and the Postal Service does not determine that unreasonable delay in the mails will occur, and the master or other person having charge or control thereof has signed and sworn to the following declaration before the collector or other proper customs officer:

I, A. B., master ___, of the ___, arriving from ___, and now lying in the port of ___, do solemnly swear (or affirm) that I have to the best of my knowledge and belief delivered to the post office at ___ every letter and every bag, packet, or parcel of letters on board the said vessel during her last voyage, or in my possession or under my power or control, except where waybilled for discharge at other ports in the United States at which the said vessel is scheduled to call and which the Postal Service has not determined will be unreasonably delayed by remaining on board the said vessel for delivery at such ports.

Whoever, being the master or other person having charge or control of such vessel, breaks bulk before he has arranged for such delivery or onward carriage, shall be fined under this title.

Whoever, having taken charge of any mail, voluntarily quits or deserts the same before he has delivered it into the post office at the termination of the route, or to some known mail carrier, messenger, agent, or other employee in the Postal Service authorized to receive the same, shall be fined under this title or imprisoned not more than one year, or both.

Whoever knowingly and willfully obstructs or retards the passage of the mail, or any carrier or conveyance carrying the mail, shall be fined under this title or imprisoned not more than six months, or both.

Whoever takes any letter, postal card, or package out of any post office or any authorized depository for mail matter, or from any letter or mail carrier, or which has been in any post office or authorized depository, or in the custody of any letter or mail carrier, before it has been delivered to the person to whom it was directed, with design to obstruct the correspondence, or to pry into the business or secrets of another, or opens, secretes, embezzles, or destroys the same, shall be fined under this title or imprisoned not more than five years, or both.

Whoever steals, purloins, embezzles, or obtains by false pretense any key suited to any lock adopted by the Post Office Department or the Postal Service and in use on any of the mails or bags thereof, or any key to any lock box, lock drawer, or other authorized receptacle for the deposit or delivery of mail matter; or

Whoever knowingly and unlawfully makes, forges, or counterfeits any such key, or possesses any such mail lock or key with the intent unlawfully or improperly to use, sell, or otherwise dispose of the same, or to cause the same to be unlawfully or improperly used, sold, or otherwise disposed of; or

Whoever, being engaged as a contractor or otherwise in the manufacture of any such mail lock or key, delivers any finished or unfinished lock or the interior part thereof, or key, used or designed for use by the department, to any person not duly authorized under the hand of the Postmaster General and the seal of the Post Office Department or the Postal Service, to receive the same, unless the person receiving it is the contractor for furnishing the same or engaged in the manufacture thereof in the manner authorized by the contract, or the agent of such manufacturer—

Shall be fined under this title or imprisoned not more than ten years, or both.

Whoever willfully or maliciously injures, tears down or destroys any letter box or other receptacle intended or used for the receipt or delivery of mail on any mail route, or breaks open the same or willfully or maliciously injures, defaces or destroys any mail deposited therein, shall be fined under this title or imprisoned not more than three years, or both.

Whoever tears, cuts, or otherwise injures any mail bag, pouch, or other thing used or designed for use in the conveyance of the mail, or draws or breaks any staple or loosens any part of any lock, chain, or strap attached thereto, with intent to rob or steal any such mail, or to render the same insecure, shall be fined under this title or imprisoned not more than three years, or both.

Whoever steals, purloins, or embezzles any property used by the Postal Service, or appropriates any such property to his own or any other than its proper use, or conveys away any such property to the hindrance or detriment of the public service, shall be fined under this title or imprisoned not more than three years, or both; but if the value of such property does not exceed $1,000, he shall be fined under this title or imprisoned not more than one year, or both.

Whoever steals, takes, or abstracts, or by fraud or deception obtains, or attempts so to obtain, from or out of any mail, post office, or station thereof, letter box, mail receptacle, or any mail route or other authorized depository for mail matter, or from a letter or mail carrier, any letter, postal card, package, bag, or mail, or abstracts or removes from any such letter, package, bag, or mail, any article or thing contained therein, or secretes, embezzles, or destroys any such letter, postal card, package, bag, or mail, or any article or thing contained therein; or

Whoever steals, takes, or abstracts, or by fraud or deception obtains any letter, postal card, package, bag, or mail, or any article or thing contained therein which has been left for collection upon or adjacent to a collection box or other authorized depository of mail matter; or

Whoever buys, receives, or conceals, or unlawfully has in his possession, any letter, postal card, package, bag, or mail, or any article or thing contained therein, which has been so stolen, taken, embezzled, or abstracted, as herein described, knowing the same to have been stolen, taken, embezzled, or abstracted—

Shall be fined under this title or imprisoned not more than five years, or both.

Whoever, being a Postal Service officer or employee, embezzles any letter, postal card, package, bag, or mail, or any article or thing contained therein entrusted to him or which comes into his possession intended to be conveyed by mail, or carried or delivered by any carrier, messenger, agent, or other person employed in any department of the Postal Service, or forwarded through or delivered from any post office or station thereof established by authority of the Postmaster General or of the Postal Service; or steals, abstracts, or removes from any such letter, package, bag, or mail, any article or thing contained therein, shall be fined under this title or imprisoned not more than five years, or both.

Whoever, being a Postal Service officer or employee, takes or steals any newspaper or package of newspapers from any post office or from any person having custody thereof, shall be fined under this title or imprisoned not more than one year, or both.

Whoever, being a Postal Service officer or employee, loans, uses, pledges, hypothecates, or converts to his own use, or deposits in any bank, or exchanges for other funds or property, except as authorized by law, any money or property coming into his hands or under his control in any manner, in the execution or under color of his office, employment, or service, whether or not the same shall be the money or property of the United States; or fails or refuses to remit to or deposit in the Treasury of the United States or in a designated depository, or to account for or turn over to the proper officer or agent, any such money or property, when required to do so by law or the regulations of the Postal Service, or upon demand or order of the Postal Service, either directly or through a duly authorized officer or agent, is guilty of embezzlement; and every such person, as well as every other person advising or knowingly participating therein, shall be fined under this title or in a sum equal to the amount or value of the money or property embezzled, whichever is greater, or imprisoned not more than ten years, or both; but if the amount or value thereof does not exceed $1,000, he shall be fined under this title or imprisoned not more than one year, or both.

This section shall not prohibit any Postal Service officer or employee from depositing, under the direction of the Postal Service, in a national bank designated by the Secretary of the Treasury for that purpose, to his own credit as Postal Service officer or employee, any funds in his charge, nor prevent his negotiating drafts or other evidences of debt through such bank, or through United States disbursing officers, or otherwise, when instructed or required so to do by the Postal Service, for the purpose of remitting surplus funds from one post office to another.

Whoever, being a Postal Service officer or employee, makes a false return, statement, or account to any officer of the United States, or makes a false entry in any record, book, or account, required by law or the rules or regulations of the Postal Service to be kept in respect of the business or operations of any post office or other branch of the Postal Service, for the purpose of fraudulently increasing his compensation or the compensation of the postmaster or any employee in a post office; or

Whoever, being a Postal Service officer or employee in any post office or station thereof, for the purpose of increasing the emoluments or compensation of his office, induces, or attempts to induce, any person to deposit mail matter in, or forward in any manner for mailing at, the office where such officer or employee is employed, knowing such matter to be properly mailable at another post office—

Shall be fined under this title or imprisoned not more than two years, or both.

Whoever, being an officer or employee of the Postal Service, issues a money order without having previously received the money therefor, shall be fined under this title.

Pistols, revolvers, and other firearms capable of being concealed on the person are nonmailable and shall not be deposited in or carried by the mails or delivered by any officer or employee of the Postal Service. Such articles may be conveyed in the mails, under such regulations as the Postal Service shall prescribe, for use in connection with their official duty, to officers of the Army, Navy, Air Force, Coast Guard, Marine Corps, Space Force, or Organized Reserve Corps; to officers of the National Guard or Militia of a State, Territory, Commonwealth, Possession, or District; to officers of the United States or of a State, Territory, Commonwealth, Possession, or District whose official duty is to serve warrants of arrest or commitments; to employees of the Postal Service; to officers and employees of enforcement agencies of the United States; and to watchmen engaged in guarding the property of the United States, a State, Territory, Commonwealth, Possession, or District. Such articles also may be conveyed in the mails to manufacturers of firearms or bona fide dealers therein in customary trade shipments, including such articles for repairs or replacement of parts, from one to the other, under such regulations as the Postal Service shall prescribe.

Whoever knowingly deposits for mailing or delivery, or knowingly causes to be delivered by mail according to the direction thereon, or at any place to which it is directed to be delivered by the person to whom it is addressed, any pistol, revolver, or firearm declared nonmailable by this section, shall be fined under this title or imprisoned not more than two years, or both.

Whoever knowingly deposits for mailing or delivery, or knowingly causes to be delivered by mail, according to the direction thereon, or at any place at which it is directed to be delivered by the person to whom it is addressed, anything declared nonmailable by section 3014(b) of title 39, unless in accordance with the rules and regulations prescribed by the Postal Service under section 3014(c) of such title, shall be fined under this title, or imprisoned not more than one year, or both.

Whoever forges or counterfeits any certification authorized under any rules or regulations prescribed under section 3014(c) of title 39 with intent to make it appear that such is a genuine certification, or makes or knowingly uses or sells, or possesses with intent to use or sell, any forged or counterfeited certification so authorized, or device for imprinting any such certification, shall be fined under this title, or imprisoned not more than one year, or both.

A person who knowingly deposits for mailing or delivery, or knowingly causes to be delivered by mail, according to the direction thereon, or at any place at which it is directed to be delivered by the person to whom it is addressed, anything that section 3015 of title 39 declares to be nonmailable matter shall be fined under this title, imprisoned not more than 1 year, or both.

Whoever makes use of any official envelope, label, or indorsement authorized by law, to avoid the payment of postage or registry fee on his private letter, packet, package, or other matter in the mail, shall be fined under this title.

Whoever, being a Postal Service officer or employee, knowingly and willfully: uses or disposes of postage stamps, stamped envelopes, or postal cards entrusted to his care or custody in the payment of debts, or in the purchase of merchandise or other salable articles, or pledges or hypothecates the same or sells or disposes of them except for cash; or sells or disposes of postage stamps or postal cards for any larger or less sum than the values indicated on their faces; or sells or disposes of stamped envelopes for a larger or less sum than is charged therefor by the Postal Service for like quantities; or sells or disposes of postage stamps, stamped envelopes, or postal cards at any point or place outside of the delivery of the office where such officer or employee is employed; or for the purpose of increasing the emoluments, or compensation of any such officer or employee, inflates or induces the inflation of the receipts of any post office or any station or branch thereof; or sells or disposes of postage stamps, stamped envelopes, or postal cards, otherwise than as provided by law or the regulations of the Postal Service; shall be fined under this title or imprisoned not more than one year, or both.

Whoever knowingly submits to the Postal Service or to any officer or employee of the Postal Service, any false evidence relative to any publication for the purpose of securing the admission thereof at the second-class rate, for transportation in the mails, shall be fined under this title.

Matter of the second, third, or fourth class containing any writing or printing in addition to the original matter, other than as authorized by law, shall not be admitted to the mails, nor delivered, except upon payment of postage for matter of the first class, deducting therefrom any amount which may have been prepaid by stamps affixed, unless by direction of a duly authorized officer of the Postal Service such postage shall be remitted.

Whoever knowingly conceals or incloses any matter of a higher class in that of a lower class, and deposits the same for conveyance by mail, at a less rate than would be charged for such higher class matter, shall be fined under this title.

Except as otherwise provided by treaty or convention the Postal Service may require the transportation by any steamship of mail between the United States and any foreign port at the compensation fixed under authority of law. Upon refusal by the master or the commander of such steamship or vessel to accept the mail, when tendered by the Postal Service or its representative, the collector or other officer of the port empowered to grant clearance, on notice of the refusal aforesaid, shall withhold clearance, until the collector or other officer of the port is informed by the Postal Service or its representative that the master or commander of the steamship or vessel has accepted the mail or that conveyance by his steamship or vessel is no longer required by the Postal Service.

Whoever knowingly and willfully deposits any mailable matter such as statements of accounts, circulars, sale bills, or other like matter, on which no postage has been paid, in any letter box established, approved, or accepted by the Postal Service for the receipt or delivery of mail matter on any mail route with intent to avoid payment of lawful postage thereon, shall for each such offense be fined under this title.

Whoever, being a postmaster or other person authorized to receive the postage of mail matter, fraudulently demands or receives any rate of postage or gratuity or reward other than is provided by law for the postage of such mail matter, shall be fined under this title or imprisoned not more than six months, or both.

Whoever places any matter in the mails during the regular weighing period, for the purpose of increasing the weight of the mail, with intent to cause an increase in the compensation of the railroad mail carrier over whose route such mail may pass, shall be fined under this title or imprisoned not more than five years, or both.

Whoever, without authority from the Postal Service, sets up or professes to keep any office or place of business bearing the sign, name, or title of post office, shall be fined under this title.

It shall be unlawful to paint, print, or in any manner to place upon or attach to any steamboat or other vessel, or any car, stagecoach, vehicle, or other conveyance, not actually used in carrying the mail, the words “United States Mail”, or any words, letters, or characters of like import; or to give notice, by publishing in any newspaper or otherwise, that any steamboat or other vessel, or any car, stagecoach, vehicle, or other conveyance, is used in carrying the mail, when the same is not actually so used.

Whoever violates, and every owner, receiver, lessee, or managing operator who suffers, or permits the violation of, any provision of this section, shall be fined under this title or imprisoned not more than six months, or both.

Whoever, being a postmaster, affixes his signature to the approval of any bond of a bidder, or to the certificate of sufficiency of sureties in any contract, before the said bond or contract is signed by the bidder or contractor and his sureties, or knowingly, or without the exercise of due diligence, approves any bond of a bidder with insufficient sureties, or knowingly makes any false or fraudulent certificate, shall be fined under this title or imprisoned not more than one year, or both; and shall be dismissed from office and disqualified from holding the office of postmaster.

Whoever, except as permitted by law, knowingly mails any periodical publication without the prepayment of postage, or, being an officer or employee of the Postal Service, knowingly permits any periodical publication to be mailed without prepayment of postage, shall be fined under this title, or imprisoned not more than one year, or both.

Whoever, being an editor or publisher, prints in a publication entered as second class mail, editorial or other reading matter for which he has been paid or promised a valuable consideration, without plainly marking the same “advertisement” shall be fined under this title.