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Interpretation Response #09-0240 ([Dangerous Goods of America] [Mr. Fred A. Romero])

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

Interpretation Response Details

Response Publish Date:

Company Name: Dangerous Goods of America

Individual Name: Mr. Fred A. Romero

Location State: FL Country: US

View the Interpretation Document

Response text:

July 2, 2010




Mr. Fred A. Romero


Dangerous Goods of America

P.O. Box 520487

Miami, FL 33152-0487

Reference No. 09-0240

Dear Mr. Romero:

This is in response to your letter and June 28, 2010 telephone conversation with a member of my staff asking if, when transporting hazardous materials by aircraft, the recurrent three-year hazardous material training requirements under the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180) take precedence over the recurrent two-year hazardous material training requirements under the International Civil Aviation Organization's (ICAO's) Technical Instructions for the Transport of Dangerous Goods by Air (Technical Instructions). I apologize for the delay in responding and any inconvenience this may have caused.

The Pipeline and Hazardous Materials Safety Administration's HMR training requirements apply to persons who perform a covered function for hazardous materials transported in commerce to, from and within the United States. This training must include general awareness, function-specific, safety, and security awareness training as specified in § 172.704(a) of the HMR. Training conducted to comply with the ICAO Technical Instructions, may be used to satisfy the training requirements set forth in § 172.704 to the extent that such training addresses the training components specified in § 172.704(a). Where this training does not satisfy the HMR, the employer or self-employed person performing these tasks must provide additional training that satisfies these requirements.

The ICAO Technical Instructions provide that the recurrent hazardous materials training requirements prescribed in Part 1, Chapter 4, Section 4.2.3, "must take place within 24 months of previous training to ensure knowledge is current." Under § 171.22(g)(2) of the HMR, a person who performs a covered function for hazardous materials shipments offered for transportation or transported in the United States must comply with the training requirements in 49 CFR Part 172, Subpart H, as applicable, including function specific training in the use of the international transport standards and regulations authorized in § 171.22(a), such as the ICAO Technical Instructions. Therefore, a person who uses the ICAO Technical Instructions for the transport of hazardous materials, either domestically or internationally, must be re-trained at least once every three years in accordance with § 172.704(c). The HMR do not prohibit recurrent training from occurring sooner than three years. When hazardous material training is performed for a covered function in conformance with the ICAO Technical Instructions every two years, and this training also satisfies the requirements in § 172.704(a), the person receiving the training is in conformance with the HMR training requirements. Please note, the HMR also require, under § 171.24(a) and (b)(1), that shipments of hazardous materials offered for or transported by aircraft within the United States must comply with all applicable requirements in 49 CFR Parts 171 and 175.

I hope this satisfies your request.


Hattie L. Mitchell

Chief, Regulatory Review and Reinvention

Office of Hazardous Materials Standards

172.704, 171.24, 171.22

Regulation Sections

Section Subject
171.22 Authorization and conditions for the use of international standards and regulations
172.704 Training requirements