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Interpretation Response #11-0173

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

Interpretation Response Details

Response Publish Date: 09-01-2011
Company Name: Department of the Army- SDDC    Individual Name: Mr. Daniel A. Maham
Location state: IL    Country: US

View the Interpretation Document

Response text:

September 1, 2011



Mr. Daniel A. Maham
Director of Safety
Department of the Army- SDDC
1 Solider Way, Bldg 1900W
Scott AFB, IL 62225

Reference No.: 11-0173

Dear Mr. Maham:

This responds to your July 25, 2011 letter requesting clarification of the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to the on deck segregation of freight containers carrying incompatible explosives in accordance with § 176.144(a). In particular, you ask if these freight containers must be segregated 20 ft (6m) fore and aft and 8 feet (2.5m) athwartship from each other in accordance with § 176.170(f) or 20 feet (6m) from each other in all directions in accordance with § 176.144(e).

Freight containers carrying incompatible explosives must be segregated in accordance with § 176.170(f) and 176.83(f) or 176.83(l)(3), as appropriate. Section 176.144(e) does not apply to the segregation of incompatible explosives in separate freight containers. Although not specifically stated, § 176.144(e) only applies to the segregation of individual packages, pallets, or magazines containing incompatible explosives when on deck.

I hope this satisfies your inquiry. Please contact us if we can be of further assistance.



Delmer Billings
Senior Regulations Advisor, Standards Development Branch
Standards and Rulemaking Division

176.144, 176.170, 176.83

Regulation Sections

Section Subject
§ 176.144 Segregation of Class 1 (explosive) materials