Cal/OSHA Enforcement Branch
Regional and District Offices

All Offices Closed for Thanksgiving

All DIR offices will be closed on Thursday, November 27 and Friday, November 28 for the Thanksgiving holiday. Visit the State Holidays page for more information.

David Wesley, Deputy Chief
Field Enforcement

(714) 558-4411
DOSHEnforcement@dir.ca.gov

Vacant, Assistant Deputy Chief
Field Enforcement

(714) 558-4411
DOSHEnforcement@dir.ca.gov

Abigail Fabricante, Regional Manager
1515 Clay Street, Suite 1301
Oakland, CA 94612

Phone:(510) 907-2415
Fax:(510) 286-0450
DOSHREG1Oakland@dir.ca.gov

San Francisco District Office

Jose Nevarez, District Manager

455 Golden Gate Ave., Suite 9516
San Francisco, CA 94102

phone:(415) 557-0100
fax:(415) 557-0123
DOSHSF@dir.ca.gov

Fremont District Office

Kelly Tatum, District Manager

39141 Civic Center Dr., Ste. 310
Fremont, CA 94538

phone:(510) 794-2521
fax:(510) 794-3889
DOSHFremont@dir.ca.gov

Foster City District Office

Barbara Kim, District Manager

1065 East Hillsdale Blvd., Ste. 110
Foster City, CA 94404

phone:(650) 573-3812
fax:(650) 573-3817
DOSHFC@dir.ca.gov

Oakland District Office

Wendy Hogle-Lui, District Manager

1515 Clay Street, Ste. 1303
Oakland, CA 94612

phone:(510) 622-2916
fax:(510) 622-2908
DOSHOAK@dir.ca.gov

Region 2 - Sacramento Regional Office

William Estakhri, Regional Manager

1750 Howe Avenue, Suite 440
Sacramento, CA 95825

Phone:(916) 263-2803
Fax:(916) 263-2824
DOSHREG2Sacramento@dir.ca.gov

Sacramento District Office

Joseph Crocker, District Manager

1750 Howe Ave. Suite 430
Sacramento, CA 95825

phone:(916) 263-2800
fax:(916) 263-2798
DOSHSAC@dir.ca.gov

Redding District Office

John Wendland, District Manager

381 Hemsted Drive
Redding, CA 96002

phone:(530) 224-4743
fax:(530) 224-4747
DOSHRED@dir.ca.gov

American Canyon District Office

Kathy Lynn Garner, District Manager

3419 Broadway Street, Suite H8
American Canyon, CA 94503

phone:(707) 649-3700
fax:(707) 649-3712
DIRDOSHAmericanCanyon@dir.ca.gov

Region 3 - Santa Ana Regional Office

Brandon Hart, Acting Regional Manager

2 MacArthur Place, Suite 720
Santa Ana, CA 92707

Phone:(714) 558-4300
Fax:(714) 558-4083
DOSHREG3SantaAna@dir.ca.gov

Santa Ana District Office

Ujitha Perera, District Manager

2 MacArthur Place, Suite 720
Santa Ana, CA 92707

phone:(714) 558-4451
fax:(714) 558-2035
DOSHSA@dir.ca.gov

San Diego District Office

William Baron, District Manager

7575 Metropolitan Dr., Ste. 207
San Diego, CA 92108

phone:(619) 767-2280
fax:(619) 767-2299
DOSHSD@dir.ca.gov

San Bernardino District Office

Vacant, District Manager

464 W. 4th Street, Ste. 332
San Bernardino, CA 92401

phone:(909) 383-4321
fax:(909) 383-6789
DOSHSB@dir.ca.gov

Riverside District Office

Stephanie Winn, District Manager

3737 Main St., Ste. 201
Riverside, CA 92501

phone:(951) 410-4250
DOSHRIV@dir.ca.gov

Region 4 - Monrovia Regional Office

Hassan Adan, Regional Manager

800 Royal Oaks Drive, Suite 105
Monrovia, CA 91016

Phone:(626) 471-9122
Fax:(626) 471-9133
DOSHREG4Monrovia@dir.ca.gov

Los Angeles District Office

Muhammad Zubair, District Manager

320 West 4th Street, Suite 820
Los Angeles, CA 90013

phone:(213) 576-7451
fax:(213) 576-7461
DOSHLA@dir.ca.gov

Monrovia District Office

David Rodriguez, District Manager

800 Royal Oaks Drive, Suite 105
Monrovia, CA 91016

phone:(626) 239-0369
fax:(626) 239-0387
DOSHMRV@dir.ca.gov

Van Nuys District Office

Tomas Micheo, District Manager

6150 Van Nuys Blvd., Ste. 405
Van Nuys, CA 91401

phone:(818) 901-5403
fax:(818) 901-5578
DOSHVN@dir.ca.gov

Long Beach District Office

Omar Castillo, District Manager

1500 Hughes Way, Suite C-201
Long Beach, CA 90810

phone:(424) 450-2630
fax:(424) 450-2675
DOSHLBO@dir.ca.gov

James Wittry, Principal Safety Engineer

1750 Howe Avenue, Suite 470
Sacramento, CA 95825

Phone:(818) 901-5420
Fax:(818) 901-5579
DOSHREG5Sac@dir.ca.gov

Mining and Tunneling
Sacramento District Office

Jeffrey Wallace, Senior Safety Engineer

1750 Howe Avenue, Suite 450
Sacramento, CA 95825

phone:(916) 574-2540
fax:(916) 574-2542
DOSHMTSAC@dir.ca.gov

Mining and Tunneling
Van Nuys District Office

Matthew Switzer, Senior Safety Engineer

6150 Van Nuys Blvd., Suite 310
Van Nuys, CA 91401

phone:(818) 901-5420
fax:(818) 901-5579
DOSHMTVN@dir.ca.gov

Mining and Tunneling
San Bernardino District Office

Sterling Wainscott, Senior Safety Engineer

464 W. 4th Street, Ste. 354
San Bernardino, CA 92401

phone:(909) 383-6782
fax:(909) 388-7132
DOSHMTSB@dir.ca.gov

Ayman Shiblak, Regional Manager

2 MacArthur Place, Suite 820
Santa Ana, CA 92707

Phone:(714) 558-4415
Fax:(714) 558-4449
DOSHREG6SantaAna@dir.ca.gov

High Hazard Unit - North

Tara Huffman, District Manager

1515 Clay Street, Ste. 1303, MS #40
Oakland, CA 94612

phone:(510) 622-3015
fax:(510) 622-3025
DOSHHHUN@dir.ca.gov

Labor Enforcement Task Force - North

Laurie Gier, District Manager

1750 Howe Ave, Suite 410
Sacramento, CA 95825

office:(916) 263-4185
fax:(916) 263-2567
DIRLETFN@dir.ca.gov


High Hazard Unit - Central

Vacant, District Manager

2550 Mariposa Street, Room 3015
Fresno, CA 93721

DOSHHHUC@dir.ca.gov

Labor Enforcement Task Force - Central

Jan Hami, District Manager

2550 Mariposa Street, Room 3015
Fresno, CA 93721

DIRLETFC@dir.ca.gov


High Hazard Unit - South

Lex Eaton, District Manager

2 MacArthur Place, Suite 820
Santa Ana, CA 92707

phone:(714) 567-7100
fax:(714) 662-6091
DOSHHHUS@dir.ca.gov

Labor Enforcement Task Force - South

Steven Schmidtbauer, District Manager

2 MacArthur Place, Suite 820
Santa Ana, CA 92707

phone:(714) 558-4120
fax:(714) 558-6774
DIRLETFS@dir.ca.gov

Andrew Kong, Regional Manager

2 MacArthur Place, Suite 810
Santa Ana, CA 92707

Phone:(714) 558-4600
Fax:(714) 558-4614
DOSHPSMS@dir.ca.gov

Process Safety Management - North

Non Refinery Program
Michael Boyle, District Manager

Refinery Program
Clement Hsieh, District Manager

1855 Gateway Blvd., Suite 350
Concord, CA 94520

phone:(925) 602-2665
fax:(925) 602-2668
DOSHPSMCONCORD@dir.ca.gov

Process Safety Management - South

Non Refinery Program
Vacant, District Manager

Refinery Program
Alicia Weber, District Manager

2 MacArthur Place, Suite 810
Santa Ana, CA 92707

phone:(714) 558-4600
fax:(714) 558-4614
DOSHPSMS@dir.ca.gov

Eddie Miranda, Regional Manager

2550 Mariposa St., Rm 4000
Fresno, CA 93721

Phone:(559) 445-5302
DOSHREG8FRESNO@dir.ca.gov

Modesto District Office

Mark Valadez, District Manager

4206 Technology Dr., Ste. 3
Modesto, CA 95356

phone:(209) 545-7310
DOSHMod@dir.ca.gov

Fresno District Office

Devon Benbrook, District Manager

2550 Mariposa St., Rm. 4000
Fresno, CA 93721

phone:(559) 445-5302
DOSHFre@dir.ca.gov

Bakersfield District Office

Efren Gomez, District Manager

7718 Meany Ave.
Bakersfield, CA 93308

phone:(661) 588-6400
fax:(661) 588-6428
DOSHBAK@dir.ca.gov

Santa Barbara Office

Vacant, District Manager

411 E. Canon Perdido, Ste. 3
Santa Barbara, CA 93101

DOSHStaBar@dir.ca.gov

Satellite Offices:

Santa Barbara - San Luis Obispo Satellite Office

4740 Allene Way, Ste. 100
San Luis Obispo, CA 93401

Santa Barbara - Oxnard Satellite Office

1901 N. Rice Ave., Ste. 200
Oxnard, CA 93030

Santa Barbara - Salinas Satellite Office

1880 N. Main St., Ste. 250
Salinas, CA 93906

Edgar Gonzalez, Regional Manager

7718 Meany Ave.
Bakersfield, CA 93308

Phone:pending
DOSHREG9BAKERSFIELD@dir.ca.gov

El Centro District Office

Nicolas Berg, District Manager

1550 W. Main St.
El Centro, CA 92243

phone:(760) 592-2727
DOSHAETFElCentro@dir.ca.gov

Bakersfield District Office

Vacant, District Manager

7718 Meany Ave.
Bakersfield, CA 93308

phone:(661) 587-3044
DOSHAETFBak@dir.ca.gov

Salinas District Office

Larry Martin, District Manager

1880 N. Main St., Ste. 150
Salinas, CA 93906

phone:(831) 443-3130
DOSHAETFSalinas@dir.ca.gov

Lodi District Office

Phillip Johnson, District Manager

3021 Reynolds Ranch Parkway, Ste. 160
Lodi, CA 95240

phone:(209) 310-7245
DOSHAETFLodi@dir.ca.gov

San Francisco District Office

Juan Calderon, District Manager

455 Golden Gate Ave., Rm. 9516
San Francisco, CA 94102

phone:pending
DOSHAETFSanFrancisco@dir.ca.gov


Visit the High Hazard Unit page

Visit the Labor Enforcement Task Force (LETF) Unit page

Visit the Mining and Tunneling (M&T) Unit page

Visit the Process Safety Management (PSM) Unit page




October 2025