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Interpretation Response #99-0269 ([Poitevent Carrère & Denègre L.L.P.] [Mr. Stanley A. Millan])

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

Interpretation Response Details

Response Publish Date:

Company Name: Poitevent Carrère & Denègre L.L.P.

Individual Name: Mr. Stanley A. Millan

Location State: LA Country: US

View the Interpretation Document

Response text:

December 2, 1999

 

Mr. Stanley A. Millan                        Ref. No. 99-0269
Jones Walker Waechter
Poitevent Carrère & Denègre L.L.P.
201 St. Charles Avenue
New Orleans, LA 70170-5100

Dear Mr. Millan:

This is response to your letter dated October 1, 1999, concerning the definition of hazardous substance under the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180).

Under § 171.8, a hazardous substance is defined as a material, including its mixtures and solutions, that: (1) is listed in Appendix A to § 172.101 of the HMR; (2) is in a quantity, in one package, which equals or exceeds its reportable quantity; and (3) is in a concentration by weight which equals or exceeds the concentration corresponding to the RQ of the material, as shown in the table under § 171.8.

For example, n-Butyl phthalate has an RQ of 10 pounds.  To meet the definition of a hazardous substance, the quantity of n-Butyl phthalate in each package must equal or exceed 10 pounds, and the concentration by weight must be equal to or be greater than 0.02% (200 ppm).

I hope this satisfies your request.

Sincerely,

 

John A Gale
Transportation Regulations Specialist
Office of Hazardous Materials Standards

171.8

Regulation Sections

Section Subject
171.8 Definitions and abbreviations