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Office Information

Regional Director

Contacting Region 31 Staff during Phone System Transition

Region 31 is currently undergoing a transition of our phone system. If you are having difficulty reaching an individual board agent, please try the Region’s main line at
(310) 235-7352.

Welcome to Region 31 of the National Labor Relations Board. We conduct elections, investigate charges of unfair labor practices, and protect the rights of workers to act together, serving parts of California from our office in west Los Angeles. If you have questions or wish to file a charge or petition for election, please visit our office or call and ask for the Information Officer on duty. We can arrange to have someone speak with you in the language of your choice. We are also happy to provide speakers and materials to promote a greater understanding of the National Labor Relations Act.

News From the Region

On September 8, 2015, Regional Director of Region 31 Mori Rubin and Field Attorney Marissa Dagdagan (Region 31) along with Assistant to the Regional Director of Region 21 Nathan Seidman and Supervisory Field Examiner Tirza Castellanos (Region 21) attended the kickoff of the “EMPLEO – Pinoy” program at the Pilipino Workers Center in Los Angeles, California. The EMPLEO – Pinoy program will be a valuable resource for Pilipino workers and employers, providing informational materials and running a hotline.

On August 31, 2015, Regional Director of Region 31 Mori Rubin, Regional Director of Region 21 Olivia Garcia, Supervisory Field Attorney Joanna Silverman (Region 31), Supervisory Field Attorney Stephanie Cahn (Region 21), and Supervisory Field Examiner Tirza Castellanos (Region 21) attended the Opening Ceremony of the Mexican Consulate’s Labor Rights Week in Los Angeles.

Regions 31 and 21 of the NLRB, along with the Orange County Labor and Employment Relations Association and the Federal Mediation and Conciliation Service, held the 33rd Annual Labor and Employment Law Conference in Anaheim on July 22, 2015.

Regions 21 and 31 at the 33rd Annual Labor and Employment Conference
Regions 21 and 31 at the 33rd Annual Labor and Employment Conference


Regions 31 and 21 have joined as stakeholders of Employment Education & Outreach (EMPLEO). EMPLEO is an alliance of federal, state, and local government agencies, foreign consulates and advocacy groups in Southern California that seeks to serve the needs of the Hispanic immigrant workforce. Through EMPLEO, Region 31 will work to ensure that this vulnerable work force is aware of the rights protected by the National Labor Relations Board.

The Regional Directors of Regions 21 and 31, along with their senior staff, will present important information about the implementation of the new procedures at this information session. 

Date: Thursday, April 2, 2015

Time: 10:30 a.m.

Place: NLRB, Region 31 11500 W. Olympic Boulevard, Suite 600 Los Angeles, CA 90064

Please RSVP no later than March 26, 2015 to Martina Arriaga at or 310.235.6168.


Regional Case Developments

Case Name Case Number Case Activity Issuance Datesort descending
The Ohio Chemical & Mfg. Co. 31-RC-000001 Board Decision 04/08/1948
Outboard Marine & Manufacturing Co. 31-RC-000018 Board Decision 04/05/1949
Jacobsen Mfg. Co. 31-RC-000025 Board Decision 04/19/1949
Green Bay Auto Parts Co. 31-CA-000123 Board Decision 10/08/1950
International Union, United Automobile, Aircraft and Agricultural Implement Workers of America 31-CB-000002 Board Decision 12/27/1950
District Lodge No. 94, Lodge No. 311, IAM 31-CB-000011 Board Decision 08/20/1965
Triumph Sales, Inc. 31-RM-000001 Board Decision 08/31/1965
Los Angeles Bldg. & Const. Trades Council, Etc. 31-CC-000009 Board Decision 08/31/1965
Orange Belt District Council of Painters No. 48 31-CC-000007 Board Decision 09/07/1965
American Federation of Television & Radio, Etc. 31-CB-000008 Board Decision 10/31/1965


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