Lion will be closed on Monday, February 16, 2026. Online training support is available via support@lion.com.
Search

USPS Revises Infectious Substances Shipping Rules

Posted on 4/27/2020 by Roger Marks

USPS has revised its Publication 52 regulations for mailing Category B Infectious Substances “to support the rapid deployment of coronavirus (COVID-19) diagnostic tests…”

These regulations are found in Publication 52, Appendix C, Packaging Instruction 6C for Category B Infectious Substances.

USPS added a new section to the Proper Shipping Name and ID Number section that reads in part:

All shippers of COVID-19 related UN3373 Category B infectious Substances must obtain an authorization from the Postal Service before mailing.

USPS also revised the following sections of the Publication 52, Appendix C, Packaging Instruction 6C for Category B Infectious Substances:
  • Packaging requirements for primary, secondary, and outer containers
  • Marking packages containing Category B infectious substances
  • Documentation and instructions that mailers must provide

USPS added a second bullet point to the Required Packaging section that imposes a drop testing requirement for completed packagings containing Category B Infectious Substances, reading:

The completed triple packaging must be capable of successfully passing the drop test in 49 CFR 178.609(d) at a drop height of at least 1.2 meters (3.9 feet). Following the drop test, there must be no leakage from the primary receptacle, which must remain protected by absorbent materials, when required, in the secondary packaging.

The revisions are intended to facilitate the distribution and collection of coronavirus test kits as the US works to ramp-up testing.

Read the full USPS announcement in the April 23, 2020 Postal Bulletin. 

Also in April 2020, the International Air Transport Association (IATA) released guidance related to COVID-19 and transporting infectious substances.   

Hazmat Postal Shipper Training 

Learn to navigate USPS’s unique Publication 52 requirements to ship hazardous materials by US mail within the US. Build on your 49 CFR expertise and learn the additional USPS restrictions and requirements that apply to hazardous materials like flammable liquids, toxic substances, medical samples, dry ice, and more. USPS hazmat shipper training course

This 60 minute course answers questions like: 

  • What kind of hazardous materials are allowed in the mail? 
  • What types and amounts of hazmat will USPS carry and deliver?
  • How do I know if USPS will accept my package?
  • How do I package, mark, label, and document hazmat for USPS delivery?
  • What reliefs are in place for very small quantities of hazmat?​
Learn more about the Hazmat Postal Shipper course. 

Tags: hazmat shipping, new rules, Publication 52, USPS

Find a Post

Compliance Archives

Lion - Quotes

The instructor took a rather drab set of topics and brought them to life with realistic real-life examples.

Tom Berndt

HSE Coordinator

The workshop covered a lot of information without being too overwhelming. Lion is much better, more comprehensive than other training providers.

George Alva

Manufacturing Manager

Lion's information is very thorough and accurate. Presenter was very good.

Melissa Little

Regulatory Manager

The price was reasonable, the time to complete the course was manageable, and the flexibility the online training allowed made it easy to complete.

Felicia Rutledge

Hazmat Shipping Professional

Very well structured, comprehensive, and comparable to live training seminars I've participated in previously. I will recommend the online course to other colleagues with training requirement needs.

Neil Luciano

EHS Manager

Very witty instructor, made the long times sitting bearable. One of the few training courses I can say I actually enjoyed.

John Hutchinson

Senior EHS Engineer

Lion was very extensive. There was a lot of things that were covered that were actually pertaining to what I do and work with. Great Job. I will be coming back in three years!

Tony Petrik

Hazmat Shipping Professional

The instructor does a great job at presenting material in an approachable way. I have been able to save my company about $30,000 in the last year with what I have learned from Lion!

Curtis Ahonen

EHS&S Manager

Given the choice, I would do all coursework this way. In-person courses go very fast without the opportunity to pause or repeat anything.

Ellen Pelton

Chemical Laboratory Manager

You blew the doors off the competition!

Stephen Bieschke

Facilities Manager

Download Our Latest Whitepaper

Find out what makes DOT hazmat training mandatory for employees who sign the hazardous waste manifest, a “dually regulated” document for tracking shipments.

Latest Whitepaper

By submitting your phone number, you agree to receive recurring marketing and training text messages. Consent to receive text messages is not required for any purchases. Text STOP at any time to cancel. Message and data rates may apply. View our Terms & Conditions and Privacy Policy.