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Interpretation Response #11-0103 ([Mr. Ed Van Schoick])

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

Interpretation Response Details

Response Publish Date:

Company Name:

Individual Name: Mr. Ed Van Schoick

Location State: FL Country: US

View the Interpretation Document

Response text:

June 30, 2011




Mr. Ed Van Schoick

18213 Bittern Ave.

Lutz, FL 33558

Ref. No.: 11-0103

Dear Mr. Van Schoick:

This responds to your letter requesting clarification of the Hazardous Material Regulations (HMR; 49 CFR Parts 171-180) applicable to fluorine. Specifically, you ask whether the closure requirements in § 173.40(c) apply to cylinders containing fluorine.

The answer is yes. As specified in § 173.301(c), cylinders containing toxic gases and toxic gas mixtures meeting the criteria of Division 2.3 Hazard Zone A or B must conform to the requirements of §173.40. While the Hazardous Materials Table references § 173.302 for non-bulk packaging requirements for fluorine, this does not except cylinders containing fluorine from the applicable requirements of § 173.40, including the closure requirements described in paragraph § 173.40(c).

I hope this answers your inquiry. If you need additional assistance, please contact the Standards and Rulemaking Division.


Ben Supko

Chief, Standards Development Branch

Standards and Rulemaking Division

173.40(c), 173.301(c)

Regulation Sections

Section Subject
173.301 General requirements for shipment of compressed gases and other hazardous materials in cylinders, UN pressure receptacles and spherical pressure vessels
173.40 General packaging requirements for toxic materials packaged in cylinders