Publication 52 - Hazardous, Restricted, and Perishable Mail > Summary of Changes
Publication 52, Hazardous, Restricted, and Perishable Mail
Effective September 7, 2023, Publication 52, Hazardous, Restricted, and Perishable Mail, has been updated with the following changes:
The chapter, subchapter, part, appendix, or section…
titled…
was…
in Postal Bulletin issue number…
with an issue date of…
Chapter 2, General Guidelines
214
Appeals
Revised to reflect a title change to director for the Postal Service Product Classification and the Pricing and Classification Service Center (PCSC) manager.
22632
9-7-23
221.2
Ancillary Endorsements
Revised to delete references to First-Class Mail, Parcel Select Ground, and USPS Retail Ground.
228
Shipping Papers
Revised to delete references to First-Class Mail and First-Class Package Service.
23
Handling Hazardous Materials
Revised to include information on procedures for handling nonmailable hazardous materials found in the mailstream.
Chapter 3, Hazardous Materials
323
Mailer Responsibility
Revised to incorporate new requirements, which became effective July 9, 2023, for mailers to use unique Service Type Codes and Extra Service Codes for package shipments containing hazardous material or dangerous goods.
325
DOT Hazardous Materials Warning Labels and Markings
327
Transportation Requirements
Revised to delete references to First-Class Mail, Parcel Select Ground, and USPS Retail Ground, and to replace references to First-Class Package Service with references to USPS Ground Advantage.
336
USPS Limited Quantity Surface Materials
Revised to delete a reference to First-Class Package Service and to reformat the text to improve comprehension and readability.
338
Small Quantity
Added as new 338, including text containing small-quantity provisions.
339
Packaging Requirements for Hazardous Materials
Renumbered from 338, with quotation marks added before and after “PG II” in 339.1, “DOT Packing Groups.”
341.2
Mailability, Packaging, and Marking
341.22
Mailable Explosives
342.2
Mailability
Revised to add section and title “342.21 General” above the text immediately under 342.2 and renumber 342.21 and 342.22 as 342.22 and 342.23. Also revised to reflect a title change to director for the Postal Service Product Classification and the Pricing and Classification Service Center (PCSC) manager.
343.25
Lighters
343.27
Authorization to Mail Ethanol-Based Flammable Liquids or Solids
Revised to reflect a title change to director for the Postal Service Product Classification and the Pricing and Classification Service Center (PCSC) manager, and to delete references to First-Class Mail and First-Class Package Service.
346.212
Division 6.2, Infectious Substances
Revised to reflect a title change to director for the Postal Service Product Classification and the Pricing and Classification Service Center (PCSC) manager, and to replace references to products in item b. with references to USPS Packaging Instructions.
346.321
Category B Infectious Substances
Revised to delete a reference to First-Class Mail.
346.322
Sharps Waste and Other Mailable Regulated Medical Waste
Revised to replace a reference to merchandise returns service with a reference to USPS Returns; to delete a reference to First-Class Mail; and to reflect a title change to director for the Postal Service Product Classification and the Pricing and Classification Service Center (PCSC) manager.
346.323
Used Health Care Products
346.324
Forensic Material in Category B
346.325
Nonregulated Materials
Revised to delete references to Postal Service products via which nonregulated materials are or were mailable.
346.326
Exempt Human or Animal Specimens
Revised to delete references to Postal Service products via which exempt human or animal specimens are or were mailable.
Chapter 4, Restricted Matter
434
Replica or Inert Explosive Devices
Revised to delete references to Postal Service products via which registered mail is or was available.
453.36
Return of Prescription Drugs
Revised to replace references to merchandise returns service with references to USPS Returns, and to delete a reference to First-Class Mail.
453.7
Mail-back Programs
Revised to reflect a title change to director for the Postal Service Product Classification and the Pricing and Classification Service Center (PCSC) manager, and to delete a reference to First-Class Return Package Service.
Chapter 5, Perishable Matter
Exhibit 526.6
Requirements for Mailing Small, Harmless, Cold-Blooded Animals (Except Snakes, Turtles, and Turtle Eggs)
Revised to clarify that water is allowed when mailing fish.
Chapter 6, International Mail
621.5
Extra Service Codes and Shipping Service Files
Added to incorporate new requirements, which became effective July 9, 2023, for mailers to use unique Service Type Codes and Extra Service Codes for package shipments containing hazardous material or dangerous goods.
622.2
Biological Substances, Division 6.2
Chapter 7, Air Transportation Requirements
71
General
Revised to delete a reference to First-Class Mail, and to replace a reference to First-Class Package Service with a reference to First-Class Package International Service.
72
Hazardous Materials: Air Transportation
726.1
Acceptance Personnel
Revised to delete references to First-Class Mail and First-Class Package Service and to add a reference to First-Class Package International Service.
Appendix C, USPS Packaging Instructions for Mailable Hazardous Materials
USPS Packaging Instructions 1A: Toy Propellant Devices
Required Authorization
Documentation
USPS Packaging Instructions 1B: Safety Fuse
USPS Packaging Instructions 3C: Flammable Liquid or Gas Lighters
Marking
USPS Packaging Instructions 3D: Ethanol-based Flammable Liquids and Solids
Ethanol-based Flammable Liquids and Solids
USPS Packaging Instruction 6C: Category B Infectious Substances
USPS Packaging Instruction 6D: Sharps Waste and Other Regulated Medical Waste
Revised to replace a reference to merchandise returns service with a reference to USPS Returns, delete a reference to First-Class Mail, and to replace a reference to Priority Mail with a reference to Priority Mail Return Service.
Revised to replace references to merchandise returns service with references to USPS Returns Service.
USPS Packaging Instruction 6F: Forensic Material
USPS Packaging Instruction 10A: Small Quantity Provision
Small Quantity Provision
Revised to include a hyphen between the words “small” and “quantity” in the title and text.
Required Packaging: Inner Receptable
Revised to add inner-receptable quantity limits in the associated small-quantity packaging instructions.
Appendix D, Hazardous Materials Definitions
Appendix D
Air transportation
Revised to update the definition of “Air transportation.”
Appendix G, Hazardous Materials Service Type Codes (STCs) and Extra Service Codes (ESCs)
Appendix G
Hazardous Materials Service Type Codes (STCs) and Extra Service Codes (ESCs)
Added to to incorporate new requirements, which became effective July 9, 2023, for mailers to use unique Service Type Codes and Extra Service Codes for package shipments containing hazardous material or dangerous goods.
Index
Revised the section number references of several entries to reflect revisions in this Pub 52 edition.
