# Thatcher Company — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 18-0140
- **title:** Thatcher Company — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2019-03-01
- **effective on:** Not available
- **summary:** 18-0140 response to Thatcher Company concerning 173.154.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-18-0140.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-18-0140.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-18-0140
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/docs/standards-rulemaking/hazmat/interpretations/70876/180140.pdf
**body:**

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0
U.S. Department
of Transportation
Pipeline and Hazardous
Materials Safety
Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
· MAR O 1 2019
Brent Olsen
Senior Safety Advisor
Thatcher Company
1905 Fortune Road
Salt Lake City, UT 84104
Reference No. 18-0140
Dear Mr. Olsen:
This letter is in response to your November 5, 2018, letter and subsequent phone conversations
requesting clarification of the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180)
applicable to the transportation of Class 8 corrosive material via highway. Specifically, you seek
clarification of Special Provision (SP) 3 86 and § 173 .154(b )(2) limited quantity exceptions for
Class 8 corrosives.
We have paraphrased and answered your questions as follows:
Q 1. You ask if a sister company that primarily serves your own company-but occasionally
transports hazardous materials for other manufacturers-would be considered a "private
motor carrier" for the purposes of SP 386.
Al. The answer is no. Although the HMR do not specifically define "private motor carrier,"
this Office has interpreted this term to mean a carrier that transports a business's own
products and does not provide such transportation service to other businesses. Based on
the information you provided, we do not consider the sister company to be a "private
motor carrier." (See Letter of Interpretation Ref. No. 13-0068 for additional clarification
on this subject.)
Q2. You ask if SP 386 provides any allowances to ship the authorized Class 8 corrosive
liquids in bottles that weigh less than 140 grams.
A2. The answer is no. SP 386 requires that authorized corrosive liquids be placed in bottles
that weigh no less than 140 grams when empty and have a minimum thickness of not less
than 0.020 inch (0.508 mm).
Q3. You ask if"UNl 791, Hypochlorite solutions, 8, Packing Group (PG) III," may be
shipped in I-gallon bottles lighter than 140 grams packaged in high-density polyethylene
crates.

<<<PAGE 2>>>

A3. Q4. The answer is yes. In accordance with§ 173.154(b), Class 8, PG III corrosive materials
are excepted from specification packaging when packaged in a combination packaging
that meets packaging limits in§ 173.154(b)(2). Paragraph (b)(2) places no minimum
weight restrictions on the inner packagings.
You ask if the limited quantity exceptions in§ 173.154(b)(2) allow you to ship "UNI 791,
Hypochlorite solutions, 8, PG III," in I-gallon bottles lighter than 140 grams in
non-specification fiberboard boxes.
A4. The answer is yes. See A3.
I hope this infomiation is helpful. Please contact us if we can be of further assistance.

<<<PAGE 3>>>

C ,CA~
) y- O/c/o
11/5/2018
Hazardous Materials Info Center
Pipeline and Hazardous Materials Safety Administration
Subject: Request for Interpretation
HM Info Center,
We are a chemical manufacturing and packaging company, and we would appreciate some
guidance regarding certain provisions of Special Provision 386 and Subparagraph
173.154(b)(2). All questions are in reference to packaging Hydrochloric acid, PG II and
Hypochlorite solutions, PG III, 12.5% for consumer pool use.
Question #1: In the opening sentence of SP 386, it states: "When transported by private
motor carrier only, the following corrosive liquids may be packaged in polyethylene bottles
with a capacity no greater than 3. 785 liters (one gallon) .... "
We have a sister company (Thatcher Transportation, Inc., MC 556486-P) that primarily
serves our own chemical plants, but occasionally transports backhauls for other
manufacturers. Does this preclude our transportation company from being considered a
Private Motor Carrier for the purposes of Special Provision 386?
Question #2: In provision b. of Special Provision 386, it states "Each empty bottle must
have a minimum weight of not less than 140 grams and a minimum wall thickness of not
less than 0.020 inches."
Some of our customers have requested lighter bottles and assure us that "other vendors are
packaging their product in lighter bottles". Are we missing anything in this regulation that
would allow us to ship in bottles lighter than 140 grams in high-density polyethylene
crates?
Question #3: Could we package and ship Hypochlorite solutions, PG III, 12.5% in high-
density polyethylene crates in one-gallon bottles lighter than 140 grams?
Question #4: Would the limited quantity exceptions of 173.154(b)(2) allow us to ship
Hypochlorite solutions, PG III, 12.5% in one-gallon bottles lighter than 140 grams in non-
specification fiberboard boxes?
Brent L. Olsen
Senior Safety Advisor
Thatcher Company
1905 Fortune Road
Salt Lake City, UT 84104
(801)972-4587 X 1354

<<<PAGE 4>>>

Dodd, Alice (PHMSA)
From:
Sent:
To:
Subject:
Attachments:
INFOCNTR (PHMSA)
Tuesday, November 06, 2018 2:03 PM
Hazmat Interps
FW: Request for Interpretation
PHMSA - Request for lnterpretation.docx
Hello Alice and lkeya,
Attached is a request for an official letter of interpretation. We discussed the answers to the questions yet the caller still
insisted on a letter.
Thanks,
Jonathon
From: Brent Olsen [mailto:Brent.Olsen@tchem.com]
Sent: Monday, November 05, 2018 3:02 PM
To: PHMSA HM lnfoCenter <PHMSAHMlnfoCenter@dot.gov>
Subject: Request for Interpretation
Info Center,
Attached please find our request for guidance on Special Provision 386 (shipping polyethylene bottles in high-density
polyethylene crates) and 173.154(b)( 2) (Lim ited Quantity exceptions for Corrosive Materials). Your help is greatly
appreciated. Thank you.
Brent L. Olsen
Senior Safety Advisor
Thatcher Company
P: 801-972-4590 x 1354 I M : 801-833-5148
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