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24 December 2025

AB 288: California's New Labor Law Could Pull Private Employers Into State Oversight

JM
Jeffer Mangels Butler & Mitchell LLP

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California's AB 288 creates a major potential shift in labor-relations enforcement. For the first time, the state's Public Employment Relations Board (PERB)...
United States California Employment and HR
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California's AB 288 creates a major potential shift in labor-relations enforcement. For the first time, the state's Public Employment Relations Board (PERB), traditionally limited to public-sector labor disputes, would be able to hear certain private-sector representation petitions and unfair labor practice (ULP) charges when the federal National Labor Relations Board (NLRB) is delayed or unable to act.

Because the NLRB immediately sued California to block the law, its future is uncertain. But employers should prepare for the possibility of a dual enforcement system.

What AB 288 Allows

Under AB 288, a private-sector worker may petition PERB if:

  1. The worker's position is covered by the NLRA, and
  2. The NLRB has "expressly or impliedly ceded jurisdiction," such as when:
  • cases remain pending for more than six months with no action,
  • appeals or reviews are stuck for more than 12 months,
  • the NLRB lacks a quorum, or
  • its authority is temporarily enjoined.

Why Employers Should Pay Attention

AB 288 gives PERB significant new powers, including the ability to:

  • conduct representation elections and certify unions,
  • adjudicate ULP charges,
  • order bargaining,
  • impose civil penalties (up to $1,000 per worker per violation), and
  • require binding arbitration when bargaining stalls

Recommended Steps for Employers

  • Review labor-relations policies and union-activity protocols.
  • Train managers and supervisors on employee rights and lawful communications.
  • Coordinate with labor counsel early in union campaigns or ULP disputes.
  • Monitor the AB 288 litigation and any PERB guidance.
  • Review labor-relations policies and union-activity protocols

Bottom line: AB 288 could open the door to state-level oversight of private-sector organizing and bargaining disputes. Even with the law under challenge, employers should be prepared for a more complex and accelerated labor-relations environment.

The content of this article is intended to provide a general guide to the subject matter. Specialist advice should be sought about your specific circumstances.

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