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U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

Interpretation Response #99-0279 ([Georgia-Pacific Corporation] [Ms. Becky Clark])

Below is the interpretation response detail and a list of regulations sections applicable to this response.

Interpretation Response Details

Response Publish Date:

Company Name: Georgia-Pacific Corporation

Individual Name: Ms. Becky Clark

Location State: GA Country: US

View the Interpretation Document

Response text:

March 23, 2000


Ms. Becky Clark                          Ref No. 99-0279
Traffic Analyst
Transportation Department
Georgia-Pacific Corporation
Highway 273 West
Cedar Springs, Georgia 31732

Dear Ms. Clark:

This responds to your letter of October 8, 1999, requesting clarification of the attendance requirements for unloading tank cars under the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180).  Specifically, you ask if the interpretation concerning attendance requirements for tank car unloading published in the Federal Register on February 28, 1990, remains in effect.

The answer is yes.  Electronic monitoring of tank car unloading to comply with the attendance requirements in § 174.67(I) of the HMR is permitted provided the conditions listed in your letter are met.  You need not have an exemption to utilize electronic sensors to monitor tank car unloading operations.

I hope this information is helpful.  If you have further questions, please do not hesitate to contact this office.



Thomas G. Allan
Senior Transportation Regulations Specialist
Office of Hazardous Materials Standards


Regulation Sections

Section Subject
174.67 Tank car unloading