# Slade's Industrial Services, Inc. — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 16-0049
- **title:** Slade's Industrial Services, Inc. — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2016-08-04
- **effective on:** Not available
- **summary:** 16-0049 response to Slade's Industrial Services, Inc. concerning 171.8, 180.407.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-16-0049.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-16-0049.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-16-0049
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2016/160049.pdf
**body:**

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of Transportation
U.S. Department
1200 New Jersey Avenue, SE
Washington, D.C. 20590
Materials Safety
Pipeline and Hazardous
Administration
AUG 0 4 2016
Mr. James Theriot
Slade's Industrial Services, Inc.
1626 U.S. Highway 190 West
Port Allen, LA 70767
Reference No. 16-0049
Dear Mr. Theriot:
This letter is in response to your February 29, 2016, letter requesting clarification of the
Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to visual
inspection requirements for cargo tanks with an external vinyl wrap. Specifically, you
reference a letter of interpretation on this subject that the Pipeline and Hazardous Materials
Safety Administration (PHMSA) issued on July 22, 2014, under Reference No. 14-0110.
PHMSA issued another letter of interpretation on this subject on April 14, 2016, under
Reference No. 15-0226.
We have paraphrased and answered your questions as follows:
Q1.
Would a cargo tank covered with an external vinyl wrap such that it displays a 2-foot
decal on both sides of the tank need to be internally inspected annually?
A1. Any portion of the cargo tank that is covered with an external lining (such as a vinyl
wrap), coated (such as with paint), or designed in a manner that prevents it from
in conjunction with the external visual inspection for the remaining areas of the cargo
external inspection must be internally inspected in conformance with § 180.407(d)(1)
tank. The "Compliance Dates" table in § 180.407(c) prescribes the time period for the
external visual inspection as six months for cargo tanks designed to be loaded by
vacuum with full opening rear heads and one year for all other cargo tanks. Further,
those areas of the cargo tank that are able to be externally inspected must be externally
inspected in conformance with § 180.407(d), and the results of this inspection must be
subsequently noted in the cargo tank's inspection report.
Q2.
Do cargo tanks that are painted need to be internally inspected annually?
A2. Cargo tanks painted in a manner that prevents them from being externally inspected
must be internally inspected as stated in Al. See § 180.407(d)(1).

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Q3.
Would a stick-on placard - or any other type of decal or sticker - have to be removed
from a cargo tank?
A3.
The answer is no. However, as noted in A1, if a stick-on placard, decal, or sticker
prevents areas of the cargo tank from being inspected externally, those areas must be
given an internal inspection in conformance with § 180.407(d)(1).
Q4.
If a stick-on placard is not removed, does the HMR require the cargo tank to have an
internal visual inspection?
A4.
The answer is yes.
See A3.
QS.
Would a cargo tank with an exterior that is anything other than bare metal require an
internal inspection annually?
A5.
Section 180.407(d)(1) states, "[ilf external visual inspection is precluded because any
part of the cargo tank wall is externally lined, coated, or designed to prevent an
external visual inspection, those areas of the cargo tank must be internally inspected."
Therefore, one must consider whether the application of paint on the exterior of a
cargo tank wall prevents the performance of an external visual inspection that
conforms to the requirements of the HMR (e.g., §§ 180.407(d)(2) through (d)(7)). It is
the opinion of this Office that the Registered Inspector (as defined in § 171.8), or other
appropriate person meeting the requirements of § 180.409, would determine whether
the paint has covered certain areas of the cargo tank wall in such a way that prevents a
proper external visual inspection from being performed. If the Registered Inspector
determines that the application of paint does indeed prevent a proper external visual
inspection, an internal visual inspection of those areas affected by the paint would be
required in conjunction with the external visual inspection for the remaining areas of
the cargo tank wall prescribed in § 180.407(c).
I hope this information is helpful. Please contact us if we can be of further assistance.
Sincerely,
ten sata
T. Glenn Foster
Chief, Regulatory Review and Reinvention Branch
Standard and Rulemaking Division
2

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•
Edmonson
3180-405180.406
Cargo Tanks
INDUSTRIAL SERVICES
SLADES
1626 HWY 190 WEST
PORT ALLEN, LA 70767
(225) 336-3338
To: U.S. DOT/PHMSA
02/29/2016
Subject: Questions on Interpretation #14-0110
On this interpretation an internal visual inspection is required if a tank is wrapped. Would a
tank that has a 2' decal going down the side of the tank need to be internally inspected annually? What
about tanks that are painted?, it a tank has a stick on placard or any other type of decal or sticker, will
that have to be removed? or if not remove would an internal visual inspection be required? Would
anything other than bare metal require an internal inspection annually?
Theret
Industrial Services, Inc.
james@sladeswelding.com
(225) 336-3338
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