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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 #99-0318 ([Printronix] [Ms. Kathryn Parham])

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

Interpretation Response Details

Response Publish Date:

Company Name: Printronix

Individual Name: Ms. Kathryn Parham

Location State: CA Country: US

View the Interpretation Document

Response text:

December 17, 1999


Ms. Kathryn Parham                Ref. No. 99-0318
Customer Administration
14600 Myford Rd
Irvine, CA 92623-9559

Dear Ms.  Parham:

This is in response to your letter dated November 19, 1999, requesting clarification regarding the applicability of the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180) to the transportation of accumulators.  Specifically, you ask if the HMR apply to replacement accumulators not assembled in machinery and accumulators transported in assembled machinery.

As provided by § 173.306 (f)(1), accumulators which are installed in assembled machinery and constructed with a burst pressure of at least five times their charged pressure at 701F are not subject to the HMR.  Accumulators, as described in § 173.306 (f), not in assembled machinery are subject to the HMR.  However, accumulators intended to function as shock absorbers, struts, gas spring, pneumatic springs or other impact or energy-absorbing devices are not subject to the HMR provided they meet the criteria specified in § 173.306(f)(4).

I hope this satisfies your request.



John A. Gale
Transportation Regulations Specialists
Office of Hazardous Materials Standards


Regulation Sections

Section Subject
173.306 Limited quantities of compressed gases