The non-admitted insurance market, also known as the excess & surplus lines market, provides insurance coverage for risks that are not readily available through admitted insurers. While workers' compensation insurance can be included in the non-admitted market, in California, workers' compensation coverage is generally not allowed to be provided by non-admitted insurers.
Under California Labor Code section 3700(a) mandates that workers' compensation insurance must be obtained from an admitted insurer. This requirement applies to all employers in California, including those with domestic employees. Therefore, in California, workers' compensation coverage must be purchased from an insurer that is licensed and admitted in the state to comply with state regulations.