# Minnesota Department of Transportation — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** CHI-94-007
- **title:** Minnesota Department of Transportation — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 1994-01-24
- **effective on:** Not available
- **summary:** CHI-94-007 response to Minnesota Department of Transportation concerning 180.407.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-chi-94-007.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-chi-94-007.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-chi-94-007
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Hazmat/ChiefCounsel/CHI-94-007.pdf
**body:**

<<<PAGE 1>>>

US DE:-porrmenr
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·Research and
Special Programs
Administration
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JAN 2 4 1994
Mr. James N. Denn
Commissioner
Minnesota Department of Transportation
Transportation Building
395 John Ireland Boulevard
Saint Paul, MN 55155
De a r Commissioner Dean:
I urn responding to your November 12, 1993 letter requesting
comments on Minnesota Statutes, section 221.033, subdivisions
2b and 4, concerning the transportation of gasoline within the
State of Minnesota in cargo tanks with a capacity of 3,000
gallons or less.
As I believe you already understand, the Research and Special
Programs Administration (RSPA) does not have adequate resources
to conduct thorough reviews of State and local requirements
outside of the preemption determination process set forth in
49 C.F.R. § 107.201 et seq. Moreover, informal reviews are
hindered by the absence of the public input that occurs in the
formal determination process established in the 1990 amendments
to the Hazardous Materials Transportation Act (HMTA), at 49 App.
u . s .c. § 18ll(c) (1).
None theless, at your request, I have briefly reviewed
subdivisions 2b and 4 of Minn. Stat. § 221.033, and I am
prov iding you with my personal, informal, and unofficial
comments as to whether those subdivisions are preempted by the
HMT' A .
Non -Federal requirements that concern certain "covered subjects"
and are not "substantively the same as" requirements in the HMTA
or the Hazardous Materials Regulations (HMR) are specifically
preempted by the HMTA. 49 App. U.S.C. §§ 1804(a) (4) (a),
18ll(a) (3). These "covered subjects" include the "maintenance
. or testing of a package or container which is represented,
marked, certified, or sold as qualified for use in the
transportation of hazardous materials." 49 App. u.s.c.
§ 1804(a)(4)(B)(v).

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2
According to your letter, subdivision 1 of Minn. Stat. § 221.033
makes the HMR applicable to the transportation of hazardous
materials (including hazardous substances and hazardous wastes)
within the State of Minnesota. This would include the HMR's
requirement for use of DOT specification cargo tanks to
transport gasoline. Therefore, it appears that Minnesota does
not authorize any non-DOT specification cargo tanks for
transportation of gasoline within the State of Minnesota. (At
present, intrastate motor carriers are subject to the HMR only
when they transport hazardous wastes, hazardous substances,
marine pollutants, and flammable cryogenic liquids in cargo
tanks and portable tanks. If the proposed rule in RSPA's
Docket No. HM-200 is adopted, see 58 Fed. Reg. 36923-24 [July 9,
1993], correction, 58 Fed. Reg. 38112 [July 15, 1993), the HMR's
requirement for the use of DOT specification cargo tanks, in
49 C.F.R. Part 173, and the testing requirements in 49 C.F.R.
Part 180, will apply to all motor carriers on and after
October 1, 1996.)
All DOT specification cargo tanks, other than MC 338, must be
tested for leaks in accordance with 49 C.F.R. § 180.407(h),
under the schedule set forth in 49 C.F.R. § 180.407(c). There
is no exception for cargo tanks of 3,000 gallons or less used
for the transportation of flammable liquids. (Prior to
December 31, 1990, the inspection and testing requirements in
former 49 C.F.R. § 177.824 did not apply to cargo tanks of
"3,000 gallons or less used exclusively for the transportation
of flammable liquids." That exception was eliminated as of
December 31, 1990, and all cargo tank motor vehicles must
conform to the "retest and inspection requirements set forth
in subpart E or part 180" of 49 C.F.R.)
Accordingly, I conclude that the HMTA preempts those provisions
of subdivisions 2b and 4 of Minn. Stat. § 221.033 that except
DOT specification cargo tanks of 3,000 gallons or less from
inspection and testing requirements in the HMR, because these
provisions are not "substantively the same as" the maintenance
and testing requirements in the HMR.
Your letter does not contain sufficient information for me to
comment on any other "inspection, testing, and registration
requirements" that may be established for cargo tanks with a
capacity of 3,000 gallons or less that are used to transport
gasoline solely within the State of Minnesota.

<<<PAGE 3>>>

3
As you note, RSPA recently issued a preemption determination
concerning California's inspection and registration requirements
covering tanks used to transport flammable and combustible
liquids. PD-4(R), 58 Fed. Reg. 48933, Sept. 20, 1993. A
petition for reconsideration of PD-4(R) has been submitted, and,
when RSPA issues its decision on the petition for
reconsideration, you may find further guidance from PD-4(R).
For additional information, I enclose the most recent index and
summary of preemption determinations and inconsistency rulings
issued by RSPA. ·
Please feel free to contact Frazer Hilder of my staff at the
above address, or by telephone at 202-366-4400, if you wish to
discuss any of these matters further.
Sincerely,
. ~:-_.., - - ~ ~
-
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_ -:;,/ / ' / ~- ~
Edward H. Banek mper, III
Assistant Chief Counsel for
Hazardous Materials Safety and
Research and Technology Law
Enclosure
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