Canada:
CANUTEC – Provides a 24-hour national bilingual (English & French) emergency response advisory service.
613-996-6666 (collect calls accepted)
*666 (STAR 666) cellular (in Canada only)

United States:

CHEMTREC – A 24-hour emergency response communication service.

1-800-424-9300 (collect calls accepted)
(Toll-free in the U.S., Canada and the U.S. Virgin Islands)
703-527-3887 for calls originating elsewhere

CHEMTEL, INC. – A 24-hour emergency response communication service.

1-888-255-3924 (collect calls accepted)
(Toll-free in the U.S., Canada, Puerto Rico and the U.S. Virgin Islands)
813-248-0585 for calls originating elsewhere

INFOTRAC – A 24-hour emergency response communication service.

1-800-535-5053 (collect calls accepted)

(Toll-free in the U.S. Canada and the U.S. Virgin Islands)

352-323-3500 for calls originating elsewhere

3E COMPANY – A 24-hour emergency response communication service.

1-800-451-8346 (collect calls accepted)

(Toll-free in the U.S., Canada and the U.S. Virgin Islands)

760-602-8703 for calls originating elsewhere

The emergency response information services shown above have requested to be listed as providers of emergency response information and have agreed to provide emergency response information to all callers.  they maintain periodically updated lists of state and Federal radiation authorities who provide information and technical assistance on handling incidents involving radioactive materials.

MILITARY SHIPMENTS – For assistance at incidents involving materials being shipped by, for, or to the Department of Defense (DOD), call one of the following numbers (24 hours):

703-697-0218 (collect calls accepted) for explosives/ammunition incidents (U.S. Army Operations Center)

1-800-851-8061 (Toll-free in the U.S.) – All other dangerous goods incidents (Defense Logistics Agency)

NATIONWIDE POISON CONTROL CENTER (United States only)

1-800-222-1222 (Toll-free in the U.S.)