# Airgas-SAFECOR — Hazardous Materials Safety Interpretation

**Citation:** 08-0018  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2008-03-03

08-0018 response to Airgas-SAFECOR concerning 172.101.

## Document text

<<<PAGE 1>>>

U.S. Department
of Transportation
Pipeline and Hazardous
Materials Safety
Administration
MAR 0 3 2018
Mr. John Anderson
Airgas-SAFECOR
P.O. Box 20067
Cheyenne, WY 82003
1200 New Jersey Avenue, SE
Washington, D.C. 20590
Reference No. 08-00 18
Dear Mr. Anderson:
This is in response to our January 15,2008 telephone conversation and your e-mail
concerning the entry "Chlorodifluoromethane or Refrigerant Gas R 22,2.2 (non-flammable
gas), UN 101 8" appearing in the tj 172.101 Hazardous Materials Table (HMT; 172.101) of the
Hazardous Materials Regulations (HMR). The HMT lists "Chlorodifluoromethane" and
"Refrigerant Gas R 22" in Roman type. You state your company receives the material from
different vendors in packages marked with either proper shipping name. You ask if your
company's shipping paper may display both proper shipping names or if it must display only
one.
When one proper shipping name includes alternative wording choices that appear in Roman
type in a sequence and are separated by the word "or" in italics, such as "Articles, pressurized
pneumatic or hydraulic containing non-Jlammable gas," it is the intent of @ 172.10 1. (c)(2) that
Roman type wording choice that appropriately describes the material, e.g., pneumatic or
hydraulic, must be used. However, in your scenario, both Roman type names describe the
same material. Therefore, it would be permissible to show the proper shipping name as
"Chlorodifluoromethane or Refrigerant gas R22."
I hope this satisfies your request. If you have any further questions, please contact this office
at (202) 366-8553.
Sincerely,
Hattie L. Mitchell
Chief, Regulatory Review and Reinvention
Office of Hazardous Materials Standards

<<<PAGE 2>>>

B
Page 1 of 1
Drakeford, Carolyn <PHMSA>
From: Mitchell, Hattie cPHMSA>
Sent: Tuesday, January 15,2008 7:29 AM
To: Drakeford, Carolyn <PHMSA>
Subject: FW: Proper shipping name description on a hazardous material shipping paper
From: John Anderson (SAFECOR) [mailto: John.Anderson.SAFECOR@Airgas.com]
Sent: Monday, January 14,2008 3:35 PM
To: Mitchell, Hattie <PHMSA>
Subject: Proper shipping name description on a hazardous material shipping paper
Good afternoon,
Per our phone conversation this afternoon, would the following description be acceptable.
Chlorodifluorornethane or Refrigerant Gas R22 2.2 UN1018
Our question is can we both descriptions (Chlorodifluoromethane or Refrigerant Gas R22) or are we only
allowed to use one?
If you would prefer this question as an actual letter instead of an email, please let me know.
John Anderson
Airgas-SAFECOR
P. 0 . Box 20067
Cheyenne, WY 82003
Phone 1-307-778-8809
Fax 1-307-778-7497
john.anderson@airgas.com

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2008/080018.pdf>
- Source ID: `phmsa`
- SHA-256: `9de1304a2a5b1d48285b22658ae5749d5529d956369f4bca3cf9347efec16e22`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-26T03:44:09.275Z
- Document slug: `phmsa-interpretation-08-0018`

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