A restaurant tells its kitchen staff to speak only English on the line. A hospital passes over a qualified applicant because callers "can't understand" her accent. A warehouse posts a rule that workers use English "at all times on company property." Each of these looks, to the employer, like a reasonable operational choice. Under California's Fair Employment and Housing Act, each is presumptively unlawful, and the employer carries a burden most cannot satisfy.
National origin claims tied to language sit in a favorable corner of employment law for plaintiffs. California has done what federal law never fully did: it codified the limits on English-only rules in a statute, then backed that statute with a detailed regulation that defines accent discrimination and language-proficiency requirements as forms of national origin bias. When you screen an intake involving a workplace language policy, you are usually looking at a case where the legal framework already points your direction.
The FEHA Framework for National Origin
FEHA makes it unlawful for an employer to discriminate against an employee or applicant because of national origin. Gov. Code section 12940(a). "National origin" is read broadly. The controlling regulation, 2 CCR section 11028, defines it to include an individual's or ancestors' actual or perceived place of origin, and — critically for language cases — physical, cultural, or linguistic characteristics associated with a national origin group. That means language, accent, and language use are treated as proxies for national origin, and rules that burden them are analyzed as national origin discrimination rather than dismissed as neutral workplace management.
The regulation took effect in 2018 and consolidated years of agency guidance into enforceable text. It covers English-only policies, accent discrimination, English-proficiency requirements, height and weight requirements that fall disproportionately on national origin groups, and immigration-status inquiries. When you plead a language case, cite the statute for the prohibition and the regulation for the standard. The regulation is where the business-necessity test lives, and business necessity is where these cases are usually won.
English-Only Rules and Section 12951
California did not leave English-only policies to case-by-case common law. Gov. Code section 12951 makes it unlawful for an employer to adopt or enforce a policy that limits or prohibits the use of any language in the workplace unless the policy is (1) justified by business necessity, and (2) the employer has notified employees of the circumstances and the time when the restriction must be observed and of the consequences of violating it. The statute also carves out non-working time — a rule that reaches meal periods, breaks, and employees' own time is not saved even by a genuine operational reason.
"Business necessity" under section 12951 and 2 CCR section 11028 is not the same as business convenience. The employer must show the policy is needed for the safe and efficient operation of the business, that it effectively fulfills that purpose, and that there is no alternative practice that would accomplish the purpose equally well with a lesser discriminatory impact. A blanket "English at all times" rule almost never survives this test, because it is by definition broader than any safety or supervision rationale the employer can articulate. The classic defensible version is narrow: a specific instruction, in a specific safety-sensitive task, for the duration of that task. Anything that reaches the breakroom or the parking lot is vulnerable on its face.
Practitioners should treat the notice requirement as an independent hook. Even where an employer can gesture at a safety rationale, many never gave the written notice the statute requires. A policy enforced through discipline without the statutory notice is unlawful regardless of the strength of the business justification. Pull the handbook, the disciplinary write-ups, and any signed acknowledgments early.
Accent-Based Claims
Accent discrimination is the harder-to-see cousin of the English-only rule, and it shows up most in hiring, promotion, and customer-facing reassignment. The regulation is direct: discrimination based on accent is unlawful national origin discrimination unless the employer proves the accent materially interferes with the ability to perform the job. 2 CCR section 11028. The word doing the work is "materially." An accent that a listener finds unfamiliar, or that requires a moment's extra attention, is not a lawful basis for an adverse action. The employer must tie the accent to actual, demonstrated impairment of job duties.
The federal touchstone remains Fragante v. City & County of Honolulu, 888 F.2d 591 (9th Cir. 1989), where the Ninth Circuit allowed an accent-based decision to stand only because the record showed the job demanded constant spoken communication with the public and the specific applicant's speech was found, on evidence, to interfere with that duty. Read Fragante as a warning to defendants, not a safe harbor: the court required a documented, job-specific finding, and it cautioned that accent and national origin are so intertwined that an accent rationale invites close scrutiny. In practice, the employer that reassigned your client off the phones because a customer "complained about the accent," with no assessment of whether the client could actually do the work, has handed you the case.
Language-Proficiency Requirements as a Related Trap
Employers sometimes recast a language preference as a neutral proficiency standard: "the position requires fluent English." Under the regulation, an English-proficiency requirement is lawful only if it is justified by business necessity and the level of proficiency demanded is no higher than the job actually requires. A file clerk position that demands the spoken fluency of a broadcast anchor is not measuring job fitness; it is screening out national origin groups. The analysis mirrors the disparate-impact structure — a facially neutral requirement that falls harder on a protected group, without a job-related justification and no less-discriminatory alternative, is actionable.
The evidentiary work here parallels causation fights elsewhere in the practice, where the defense insists a self-evident inference requires expert proof it does not — the same instinct that surfaces when courts decide whether a jury needs an expert to connect an obvious cause and effect. Get the actual job description, the tasks performed by others in the role, and the proficiency the employer tolerated from workers outside the protected group. Inconsistent enforcement is the fastest route to pretext.
Building and Valuing the Case
Language cases produce both economic and non-economic damages, and the emotional-distress component is often substantial because the conduct reaches identity, not just paychecks. As with any dignitary harm, the value turns on how well the testimony captures the day-to-day experience — the same reason plaintiff-side lawyers pay attention to what lay testimony can carry without an expert. Develop the client's account of being told to stop speaking their language in front of coworkers, of being pulled off duties they were performing well, of the humiliation of a customer complaint used as a career decision.
On liability, FEHA's structure favors the plaintiff at several points. National origin harassment claims proceed under the same statute where the language conduct is severe or pervasive. Retaliation attaches the moment the employee objects to the policy, because opposing a practice made unlawful by FEHA is protected activity — an employee disciplined after complaining about an English-only rule has a standalone claim even if the underlying policy dispute is close. And FEHA authorizes attorney's fees to a prevailing plaintiff, which shapes settlement posture in cases with modest wage loss but strong liability.
Watch the comparative and apportionment questions that follow the client into any parallel proceeding; the way fault and damages get divided varies enough by jurisdiction that it is worth tracking developments like shifts in comparative-fault rules even when they arise in unrelated contexts, because defense counsel borrow apportionment arguments across practice areas.
Screening Questions at Intake
A short list separates the strong file from the weak one. Was the language restriction written, and did the employer give the notice section 12951 requires? Did the rule reach non-working time? Can the employer point to a specific, task-bound safety or supervision reason, or is the rule a blanket policy? For an accent claim, is there any documented finding that the accent impaired job performance, or only a customer complaint and a reassignment? Was the proficiency standard higher than the job needed, and was it enforced evenly? Each "no" for the employer is a point for your client.
The through-line is that California decided language policies are national origin decisions and put the burden on the employer to justify them narrowly. Most employers write these rules for convenience, enforce them unevenly, and skip the statutory notice. When you read the policy against section 12951 and 2 CCR section 11028 rather than against the employer's stated intent, the claim that looked like a management prerogative usually reads as a violation with a fee-shifting statute attached.