Western Region
Last Updated: Oct 6, 2016
Map of the Western Region showing the states previously listed
Alaska, American Samoa, Arizona, California, Colorado, Commonwealth of Northern Mariana Islands, Guam, Hawaii, Idaho, Montana, Nevada, Oregon, Utah, Washington, and Wyoming
PHMSA Hazardous Materials Safety
Western Region Office
3401 Centrelake Drive
Suite 550B
Ontario, CA  91761
909-390-5142 (Fax)
PHMSA Pipeline Safety
Western Region Office
12300 W. Dakota Ave
Suite 110
Lakewood, CO  80228
720-963-3161 (Fax)

The Western Regional HAZMAT Office is based in Ontario, California. This office is charged with overseeing the safe and secure movement of daily shipments of hazardous materials by all modes of transportation.

The Western Regional Pipeline Safety office is based in Lakewood, Colorado. This office is charged with ensuring the safe, reliable, and environmentally sound operation of the nation's pipeline infrastructure.

The area of responsibility for this region is listed above; however, the jurisdiction of PHMSA staff is nationwide and not limited to their regional area of responsibility.

Recent Activity

4/11/2013—SAFETY ADVISORY: There are instances in which cylinders have been taken to recycling facilities for disposal while still containing compressed gases and other hazardous materials. Get guidance on how to handle cylinders which have not been purged of their contents.

Hazardous Materials Safety Office:
Ontario, California
Hazmat Safety Assistance Team (HMSAT)

Earl (Jack) Whitley, (909) 937-7228

Brandon Westbrook, (808) 492-8849

How to file a complaint with PHMSA's Office of Hazardous Materials Enforcement

For a listing of all other personnel, please see the Hazmat Organizational Chart (PDF).

Pipeline Safety Office:
Lakewood, Colorado


Outreach: Community Liaison Services (CLS):

Tom Finch, (720) 963-3175

Dave Mulligan, (720) 963-3193