Interpretation Response #16-0197 ([AECOM] [Ms. Erin Jarman])
Below is the interpretation response detail and a list of regulations sections applicable to this response.
Interpretation Response Details
Response Publish Date:
Company Name: AECOM
Individual Name: Ms. Erin Jarman
Location State: NC Country: US
View the Interpretation Document
Response text:
June 20, 2017
Ms. Erin N. Jarman
Environmental Scientist
AECOM
1600 Perimeter Park Drive
Morrisville, NC 27560
Reference No. 16-0197
Dear Ms. Jarman:
This letter is in response to your December 12, 2016, email and attached letter requesting clarification of the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to marking and placarding of multi-compartment cargo tanks.
You describe the following scenario:
- A four-compartment cargo tank contains two different hazardous materials.
- Compartments 1 and 2 contain UN1760, Corrosive liquid n.o.s.
- Compartments 3 and 4 contain UN3264, Corrosive liquid, acidic, inorganic, n.o.s.
- The sides of each of the four compartments are placarded with a Class 8 (corrosive) placard and marked with the applicable identification number for the hazardous material contained within.
You ask if the HMR permit the display of one Class 8 (UN1760) placard and one Class 8 (UN3264) placard when placarding the front and rear of the multi-compartment cargo tank if those two placards and identification numbers are representative of the materials contained in the cargo tank compartments.
The HMR permit the display you describe, provided the front and rear placards represent the two different substances contained in the four compartments of the cargo tank. It is not necessary to display all four placards on the front and rear of the cargo tank under these circumstances.
I hope this information is helpful. Please contact us if we can be of further assistance.
Sincerely,
T. Glenn Foster
Chief, Regulatory Review and Reinvention Branch
Standards and Rulemaking Division