West Contra Costa Unified School District experienced persistent teacher vacancies at several schools serving high percentages of low-income students, English learners, and students of color. To staff classrooms, the District used long-term substitute teachers and teachers working under emergency permits, waivers, or other limited authorizations. The District also implemented recruitment and retention efforts, including incentive programs and expanded hiring initiatives, but continued to face difficulty filling positions with fully credentialed teachers. Several teachers employed by the District alleged that students at Stege Elementary School, Helms Middle School, and Kennedy High School were being taught by instructors who lacked the credentials or subject-matter authorizations required for their assignments under California law.
The teachers filed an action against the West Contra Costa Unified School District seeking declaratory and injunctive relief under Education Code section 35186 and related credentialing statutes. They alleged the District assigned teachers to classrooms without the credentials, permits, or subject-matter authorizations required for those assignments and asked the court to order the District to comply with California’s teacher credentialing laws.
The District acknowledged that it had been unable to fill a significant number of teaching positions with fully credentialed teachers and raised the affirmative defense of impossibility. The District argued that statewide teacher shortages and difficulties recruiting credentialed teachers to the affected schools made full compliance with California’s credentialing requirements impossible despite the District’s recruitment and retention efforts. The trial court ruled in favor of the District and concluded the District had established the impossibility defense. The teachers appealed and argued that the District had not demonstrated that it had exhausted all legally available staffing alternatives before departing from statutory credentialing requirements.
The appellate court reversed. The appellate court explained that impossibility may excuse statutory noncompliance only where a party demonstrates it took all reasonable and legally authorized steps to comply with the law. Although the District presented evidence of teacher shortages and recruitment difficulties, the appellate court concluded the record did not establish that the District exhausted all options available under the Education Code before relying on substitute and misassigned teachers. The appellate court noted that the record did not show the District sought available waivers or exhausted other statutory flexibility mechanisms through the Commission on Teacher Credentialing or the State Board of Education before departing from credentialing requirements. The appellate court also referenced other available staffing alternatives, including emergency permits, internship credentials, and waiver procedures authorized by statute and regulation.
The appellate court emphasized that California’s statutory scheme reflects a legislative determination that students are entitled to properly credentialed teachers, particularly at schools serving vulnerable student populations. The appellate court rejected the argument that generalized staffing shortages alone justified continued noncompliance and concluded the District had not met its burden to establish impossibility as a matter of law.
The appellate court reversed and remanded the matter for further proceedings consistent with its opinion.
West Contra Costa Unified School District v. Superior Court (2026) ___ Cal.App.5th ___.