# Weiman Products, LLC — Hazardous Materials Safety Interpretation

**Citation:** 13-0130  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2013-08-07

13-0130 response to Weiman Products, LLC concerning 173.150.

## Document text

<<<PAGE 1>>>

U.S. Department
of Transportation
Pipeline and Hazardous
Materials Safety
Administration
1200 New Jersey Avenue, SE
Washington, D.C. 20590
AUG 0 7 ;013
Mr. Matt Malec
Process Engineer
Weiman Products, LLC
755 Tri-State Parkway
Gurnee, IL 60031
Reference No. 13-0130
Dear Mr. Malec:
This is in response to your June 12, 2013 letter requesting clarification of the Hazardous
Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to the exception for aqueous
solutions of alcohols prescribed in § 173.150( e )(2). Specifically, you ask if this exception
permits flammable liquids that are not alcohols to either qualify for this exception or be
combined with an alcohol and qualify for this exception.
To qualify for the exception prescribed in § 173 .150( e )(2), an aqueous solution of alcohol
must contain only alcohol and no other hazardous material, regardless of hazard class. The
HMR excepts from regulation an aqueous solution that contain up to 24 percent alcohol by
volume, 50 percent or more water, and no other hazardous material other than an alcohol
under § 173 .150( e )(2). Although the HMR does not specifically define the term alcohol, it is
the understanding of this Office that this term is generally defined in chemical dictionaries
and texts to mean any organic compound that has a hydroxyl group (-OH) bound to a carbon
atom, which in tum is bound to other hydrogen and/or carbon atoms.
I hope this satisfies your request.
s[2 -
1 () T. Glenn Fo&~-
l) Chief, Regulatory Review and Reinvention Branch
Standards and Rulemaking Division

<<<PAGE 2>>>

6.12.2013
U.S. DOT
PHMSA Office of Hazardous Materials Standards
Attn: PHH-10
East Building
1200 New Jersey Ave, SE.
Washington, D.C. 20590
RE: Aqueous Solutions of Alcohol Exception (49 CFR § 173.150(e)) Questions
Dear Sir or Madam:
We have recently had internal questions regarding the Aqueous Solutions of Alcohol
Exception (49 CFR § 173.150(e)). Specifically, as it is stated in 49 CFR § 173.150(e)(2), "An
aqueous solution containing 24 percent or less alcohol by volume and no other hazardous
material -Is not subject to the requirements of this subchapter if it contains no less than 50
percent water." Where it states "no other hazardous material," does that specifically pertain
to other flammable materials since it is referenced in the Exceptions for Class 3 (i.e.,
flammable) Materials section(§ 173.150)?
Thank you for your time. Please contact me using my information below.
Sincerely,
Weiman Products, LLC
-1~~,_ __,-/k .
~- / ,r·· ' ~-
/ i ./ /
Matt Malec
Process Engineer
Weiman Products, LLC
755 Tri-State Pkwy
Gurnee, IL 60031
Phone: 847-856-7290 Fax: 847-856-7390
wvvw. \Veirnan.com Mivialec @weiman.com

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2013/130130.pdf>
- Source ID: `phmsa`
- SHA-256: `1b55d6a3e739f730602aacc4b7e99f5a56cda3f2d799b299d91a00cf0abc8c65`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-23T09:07:35.167Z
- Document slug: `phmsa-interpretation-13-0130`

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