How to Draft a California Employee Arbitration Agreement That Survives AB 51 and FAA Preemption Challenges
California employers can still require employee arbitration agreements in 2026—if they are drafted to comply with AB 51’s “voluntariness” requirements and structured to withstand Federal Arbitration Act (FAA) preemption fights. AB 51 continues to shape how agreements are presented, accepted, and enforced statewide, especially for hiring and onboarding practices. This article explains the key clauses, rollout steps, and litigation-proofing strategies for California arbitration agreements.
Why AB 51 and FAA preemption matter for California arbitration agreements
California has long been a battleground over mandatory employment arbitration. The Federal Arbitration Act (FAA) generally favors enforcement of arbitration agreements, but California employees routinely challenge them on contract defenses like unconscionability, lack of mutual assent, and statutory conflicts. Assembly Bill 51 (AB 51), codified primarily in Labor Code sections 432.6 and 433, added another layer by restricting how employers can condition employment, continued employment, or employment benefits on agreement to arbitrate.
In plain terms, AB 51 puts pressure on formation—how you request, present, and obtain assent—while the FAA often controls enforcement once a valid agreement exists. A California employee arbitration agreement that “survives” in court is therefore as much about process as it is about clauses.
AB 51 in practice: what it restricts (and what it doesn’t)
AB 51 was designed to prevent employers from requiring employees or applicants to waive rights to a judicial forum as a condition of employment. The statute prohibits threatening, retaliating, or discriminating against workers for refusing to consent to arbitration. It also has notice/posting requirements and provides for enforcement mechanisms, including potential civil and criminal consequences for certain conduct.
However, AB 51 has been heavily litigated, and federal courts have repeatedly addressed whether the FAA preempts some or all of its restrictions. The practical takeaway for drafting and rollout remains consistent: assume the agreement must be defensible both as voluntary under AB 51 and as enforceable under the FAA, because plaintiffs may challenge on both fronts.
Key risk point: “mandatory” language and onboarding pressure
Even when employers believe the FAA will ultimately preempt a state restriction, AB 51 claims often focus on the record: offer letters, onboarding portals, HR scripts, “sign-or-don’t-work” messaging, and acknowledgments that make arbitration appear non-optional. Many disputes turn on whether the employee had a meaningful opportunity to review and opt out (or decline) without adverse consequences.
Start with enforceability fundamentals: mutual assent, consideration, and clarity
Before AB 51 and FAA preemption arguments even begin, courts look at basic contract formation. California judges are sensitive to ambiguity and one-sided drafting.
Mutual assent (make it unmistakable)
Use a stand-alone arbitration agreement or a clearly labeled module within an onboarding system. The signature block should state that the employee understands they are agreeing to arbitrate covered disputes and waiving the right to a judge or jury trial.
Drafting tip: Avoid burying arbitration in a handbook acknowledgment unless the handbook is contractually binding and the arbitration provision is highlighted. If you do use a handbook-based program, separate the arbitration agreement and require a distinct signature or check-box.
Consideration (ensure mutual promises)
Typically, mutual promises to arbitrate claims provide consideration. Ensure the agreement binds both employer and employee to arbitrate covered claims, not just employee claims.
Clarity and readability (reduce procedural unconscionability)
Use plain English, define “covered claims,” and avoid dense, all-caps blocks. Provide a copy at the time of presentation and allow download/print. In electronic onboarding, keep an audit trail showing the employee opened the document and had time to review.
Draft to neutralize California unconscionability attacks
Even with FAA protection, California courts can invalidate arbitration agreements under generally applicable contract defenses (e.g., unconscionability) if applied neutrally. The most common successful employee attacks involve unfair cost shifting, one-sided carve-outs, limitations on remedies, or unfair procedures.
1) Allocate arbitration costs to avoid fee-shifting problems
For statutory employment claims, employers should pay arbitration fees beyond what the employee would pay in court. A common approach: the employee pays no more than the filing fee required to initiate a civil action in California Superior Court; the employer covers the remainder of arbitrator and administrative fees.
Example clause concept: “Employer will pay all costs unique to arbitration, including arbitrator compensation and administration fees, except Employee will pay an amount equal to the then-current court filing fee.”
2) Preserve the same substantive remedies
State expressly that the arbitrator may award any relief available in court, including attorneys’ fees and statutory penalties where authorized by law. Provisions that cap damages, restrict statutory penalties, or limit fee recovery invite invalidation.
3) Provide adequate discovery and a fair hearing
Overly restrictive discovery is a frequent flashpoint. Include language allowing reasonable discovery sufficient to vindicate statutory rights, with the arbitrator empowered to resolve discovery disputes. Make clear the hearing will permit testimony, cross-examination, and submission of evidence.
4) Require a written, reasoned award
California courts view written awards favorably in employment cases. It also helps later enforcement and reduces “secret process” arguments.
5) Avoid one-sided carve-outs
Employers often want court access for trade secret and injunctive relief while forcing employees to arbitrate everything. Narrow, symmetrical carve-outs reduce risk. A common approach is to allow either party to seek provisional injunctive relief in court (e.g., temporary restraining order) while the merits proceed in arbitration.
AB 51-proofing: structure the agreement and rollout as “voluntary” without undermining enforcement
The drafting goal in California is to create a record showing the employee was not coerced and was not threatened with retaliation for declining arbitration—while still obtaining enforceable assent.
Use an opt-out mechanism (strongly recommended in California)
An opt-out provision is not required under the FAA, but it is one of the best practical tools to address AB 51 “condition of employment” allegations and procedural unconscionability.
Best practices for an opt-out:
- Give a reasonable period (commonly 30 days) after receipt/signature to opt out.
- Provide a simple method (email + mailing address; allow electronic submission).
- State that opting out will not affect hiring, pay, scheduling, promotions, or continued employment.
- Train HR not to discourage opting out.
Example language concept: “You may opt out within 30 days by sending a signed notice to [email/address]. Opting out will not result in any adverse employment action.”
Separate the arbitration agreement from the “required onboarding stack”
In many AB 51 disputes, the evidence comes from onboarding workflows that label arbitration as “required.” Consider presenting arbitration as a separate agreement with its own screen and explanation, and avoid design elements that imply the person cannot proceed with hiring unless they agree.
Use neutral communications and scripted HR guidance
AB 51 risk increases when recruiters or managers say “everyone must sign” or “we can’t hire you unless you agree.” Create a short script and FAQ for HR that:
- Explains what arbitration is and is not.
- Confirms voluntary participation (or opt-out availability).
- Directs questions to a designated contact.
FAA preemption challenges: how to draft with the FAA in mind
The FAA generally preempts state rules that single out arbitration agreements for disfavored treatment. While AB 51 litigation has turned on whether California can regulate the formation stage without conflicting with the FAA, employers should assume employees will argue both: (1) AB 51 violations and (2) ordinary contract defenses. Your drafting should maximize the likelihood a court finds a valid agreement first—because the FAA’s strongest protection typically applies once an agreement is formed.
Include a strong delegation clause (but draft it carefully)
A delegation clause assigns the arbitrator—not the court—the authority to decide “gateway” issues like enforceability, scope, and arbitrability. Proper delegation can narrow court litigation and speed enforcement.
Important: Delegation provisions themselves can be challenged as unconscionable. Improve defensibility by:
- Using clear, standalone language (“The arbitrator shall decide all issues of arbitrability…”).
- Incorporating arbitration rules that expressly give the arbitrator jurisdiction (e.g., AAA/CPR/JAMS rules), and attaching or linking the rules.
- Not making delegation one-sided.
Choice of law and venue: be precise
State which law governs the agreement’s enforcement. Many California employers specify the FAA governs to the fullest extent permitted, with California law applying where not inconsistent with the FAA. Also specify the arbitration location (typically the county of the employee’s worksite or residence) to avoid claims of unfair forum selection.
Severability: draft to preserve the core agreement
Use a severability clause that allows a court/arbitrator to sever unenforceable terms while enforcing the remainder, but be mindful: if your agreement is overly aggressive (e.g., multiple unlawful limits on remedies), a judge may refuse to “blue pencil” and may invalidate the whole contract. The best severability strategy is conservative drafting.
Class action waivers, representative claims, and PAGA: what to do in California
California employers routinely include class and collective action waivers. Under U.S. Supreme Court precedent, class waivers in arbitration agreements are generally enforceable under the FAA. But California’s Private Attorneys General Act (PAGA) adds complexity because it authorizes “representative” claims on behalf of the state.
Use a PAGA strategy aligned with current Supreme Court guidance
Post-Viking River Cruises, Inc. v. Moriana, many agreements compel arbitration of an employee’s individual PAGA claim (the portion based on violations suffered by
