Summary of Changes - USPS

1 Summary of ChangesPublication 52, hazardous , Restricted, and Perishable MailEffective October 21, 2021, Publication 52, hazardous , Restricted, and Perishable Mail, has been updated with the following Changes :The chapter, subchapter, part, appendix, or Postal Bulletin issue an issue date 4, Restricted Matter47 Cigarettes, Smokeless Tobacco, and Electronic Nicotine Delivery SystemsRevised to update the title of part 47 to incorporate new federal statutory restrictions on mailing electronic nicotine delivery systems (ENDS), including their liquids, parts, components and accessories. to incorporate new federal statutory restrictions on mailing electronic nicotine delivery systems (ENDS), including their liquids, parts, components and accessories. TobaccoRevised to capitalize the title to be consistent with the publication s title capitalization style.

2 Nicotine Delivery System (ENDS)Added to incorporate new federal statutory restrictions on mailing electronic nicotine delivery systems (ENDS), including their liquids, parts, components and accessories. ProductAdded to incorporate new federal statutory restrictions on mailing electronic nicotine delivery systems (ENDS), including their liquids, parts, components and accessories. AgeAdded to incorporate new federal statutory restrictions on mailing electronic nicotine delivery systems (ENDS), including their liquids, parts, components and accessories. 2258310-21-21472 Covered Products Generally NonmailableRevised to incorporate new federal statutory restrictions on mailing electronic nicotine delivery systems (ENDS), including their liquids, parts, components and accessories. 2258310-21-21473 Mailability ExceptionsAdded to incorporate new federal statutory restrictions on mailing electronic nicotine delivery systems (ENDS), including their liquids, parts, components and accessories.

3 2258310-21-21474 Additional GuidelinesAdded to incorporate new federal statutory restrictions on mailing electronic nicotine delivery systems (ENDS), including their liquids, parts, components and accessories. 2258310-21-21 The chapter, subchapter, part, appendix, or Postal Bulletin issue an issue date LetterHazardous, Restricted, and Perishable MailPublication 52 October 2021 Transmittal Publication 52, hazardous , Restricted, and Perishable Mail, provides important information to help mailers determine what may be mailed and how certain items must be packaged to keep the mail safe. It also provides guidance to Postal Service employees accepting this 52 is available on Postal Explorer at may also consult their local postmaster or manager of business mail entry for additional information about hazardous materials in the Date.

4 This edition is effective October 2021. All previous issues of Publication 52 are Public: The public can access Publication 52 in PDF and HTML formats on Postal Explorer at Service: Postal Service employees can access Publication 52 in PDF and HTML formats on the usps Web to Use This Book. An introduction is located at the beginning of the book. It explains the purpose and scope of the book, as well as the need to protect Postal Service employees and customers from potentially dangerous materials in the mail. In the appendices, we have included a hazardous materials table , packaging instructions for mailable materials, and a glossary of Contact your local Post Office , business mail entry office, or the Pricing and Classification Service Center (PCSC) with comments or questions about our mailing standards (see DMM for addresses and telephone numbers of business mail entry offices and the PCSC).

5 Steven W. Monteith Vice President MarketingOctober 2021iiiContentsSummary of Changes ..iTransmittal Letter ..i1 Introduction..111 Purpose.. 1111 General .. 1112 Use .. 1113 Other Reference Sources .. 112 Scope .. 3121 General .. 3122 hazardous , Restricted, and Perishable.. 3123 Mailability Premise .. Premise .. Matter General .. Matter General.. Materials .. Nonmailable Matter .. 513 Additional Information.. 514 Safety .. 515 Protecting Personnel .. 616 Military Postal System .. 617 Statutory System .. 618 Trademarks of the usps .. 7181 Use of usps Trademarks .. 7182 Common Law Marks or usps Marks with Pending Trademark Applications .. 82 General Guidelines ..921 Mailability .. 9211 General .. 9212 Mailer Responsibility .. 10213 Authority.

6 10214 Appeals .. 10215 Requests for Rulings .. Materials .. Matter or Perishable Matter .. 12216 Nonmailable Matter Found in the Mail .. 12 hazardous , Restricted, and Perishable MailivPublication 5222 Marking Requirements .. 12221 General .. Side of Mailpiece .. Endorsements .. 13222 Matter Excepted From Markings.. 13223 hazardous Materials Warning Labels and Markings.. 13224 Tag 44 for hazardous Materials .. 14225 Other Postal Service Labels and Tags .. 14226 Package Orientation Markings .. 14227 Old Markings .. 14228 Shipping Papers .. 1523 Handling hazardous Materials .. 1624 Emergency Procedures .. 16241 General Requirements.. 16242 Hazard Duration .. 16243 Precautions .. 16244 Procedures .. 17245 hazardous Chemical Emergencies .. 17246 Emergency Telephone Numbers.

7 1825 Basic Guidelines for Acceptance and Dispatch .. 19251 Guidelines for Acceptance Personnel .. 19252 Guidelines for Dispatch Personnel .. 193 hazardous Materials ..2131 Definition .. 2132 General .. Department of Transportation .. 21322 Postal Service .. 21323 Mailer Responsibility .. 22324 Mailability Rulings .. 22325 DOT hazardous Materials Warning Labels and Markings .. Requirements .. Warning Labels and Marks .. Warning Labels .. Quantity Markings.. Quantity Labels .. 26326 Shipping Papers .. 27327 Transportation Requirements .. Transportation Prohibitions .. 29328 Postal Service hazardous Materials table .. 30 ContentsOctober 2021v33 Hazard Classes .. 30331 Nine Classes .. 30332 Limited Quantity .. 32333 Consumer Commodity .. 33334 usps Limited Quantity Air Materials.

8 33335ID8000 Materials .. 33336 usps Limited Quantity Surface Materials .. 33337 Excepted Quantity.. Restrictions.. and Marking .. 35338 Packaging Requirements for hazardous Materials.. Packing Groups.. Service Packaging Instructions .. 35339 Nonmailable Materials Found in the Mailstream .. 3534 Mailability by Hazard Class.. 35341 Explosives (Hazard Class 1) .. , Packaging, and Marking .. 36342 Gases (Hazard Class 2) .. and Documentation .. Rulings .. 42343 Flammable and Combustible Liquids (Hazard Class 3) .. and Packaging .. and Documentation .. 48344 Flammable Solids (Hazard Class 4) .. , Marking, and Documentation .. 50345 Oxidizing Substances, Organic Peroxides (Hazard Class 5) .. , Marking, and Documentation .. 52346 Toxic Substances and Infectious Substances (Hazard Class 6).

9 56 hazardous , Restricted, and Perishable MailviPublication , Marking, Labeling, and Documentation .. Parcels .. 75347 Radioactive Materials (Hazard Class 7).. Procedures .. 78348 Corrosives (Hazard Class 8) .. and Documentation .. 82349 Miscellaneous hazardous Materials (Hazard Class 9) .. and Documentation .. 934 Restricted Matter ..9541 General .. 95411 Definition .. 95412 Mailer Responsibility .. 95413 Rulings.. 95414 Nonmailable Matter Found in the Mails .. 9542 Intoxicating Liquors .. 95421 Definition .. 95422 Mailability .. Matter .. Liquors .. 96423 Packaging and Marking .. Flammable or Combustible Liquor .. 9643 Firearms .. 97431 Definitions .. Firearm .. and Shotguns.. Firearms Licensee (FFL) .. Guns .. 98 ContentsOctober 2021vii432 Mailability.

10 And Shotguns.. Claims .. 102433 Legal Opinions on Mailing Firearms .. 102434 Replica or Inert Explosive Devices .. 103435 Nonmailable Firearms Found in the Mails .. 10344 Knives and Sharp Instruments .. 103441 Definitions .. Knife .. 103442 Mailability .. 103443 Packaging and Marking .. 104444 Nonmailable Knives in the Mails .. 10445 Other Restricted Materials .. 104451 Liquids, Powders, and Odor-Producing Materials .. and Marking .. 105452 Motor Vehicle Master Keys and Locksmithing Devices .. and Marking .. Matter Found in the Mails.. 107453 Controlled Substances and Drugs .. Responsibility .. and Marking .. Matter Found in the Mails.. Programs .. Medicines .. 113454 Unsolicited Promotional Samples .. Compliance .. Objection to Unsolicited Matter.