PHMSA Response Letter

---

May 18, 2004

Mr. Fumie Sloan                Reference No. 04-0073
Supervisor  -   Hazmat
MOL   America,    Inc.
One   Concord   Center
2300 Clayton Road, Suite 1500
Concord,   CA    94520

Dear Mr. Sloan:

This responds to your letter concerning the technical name f6r “Self-Reactive Solid, Type D, 4.1, UN 3226, PG II” under the Hazardous Materials Regulations (HMR; 49 CFR parts 171-180).  It is your opinion that “modified Azodicarbonamide” as shown on the Dangerous goods declaration is not an acceptable technical name because it is not listed as a technical name in the § 173.224(b) table of the HMR or in the 2.4.2.3.2.3 table of the International Maritime Dangerous Goods (IMDG) Code.

You are correct; “modified Azodicarbonarnide” is not an acceptable technical name under the HMR and the IMDG Code.  A self-reactive material that is not identified by technical name in the Self-Reactive Materials Table of § 173.224(b) of the HMR must be approved by the Associate Administrator under the provisions of § 173.124(a) (2) (iii). Similarly, under the IMDG Code, classification of new self-reactive substances or formulations that are not listed in the 2.4.2.3.2.3 table and assignments to a generic entry must be made by the competent authority of the country of origin.  Classification procedures, test methods, and criteria relating to self-reactive substances of Division 4.1 are found in the United Nations Transport of Dangerous Goods Manual of Tests and Criteria, Part II.

I trust this satisfies your request.

Sincerely,

Hattie L. Mitchell
Chief, Regulatory Review and Reinvention
Office of Hazardous Materials Standards

172.101,  173.224