Challenging Agency Regulations through Defects in the Rule-making Process

California law requires administrative agencies to comply with the California Administrative Procedure Act (“APA”) (Government Code §§ 11340, et seq.) when adopting regulations.  A regulation that does not go through this process is called an “underground regulation” and is subject to legal challenge in the courts.  Further, a regulation that makes it through this process, but results from some deficiency in the process may also be invalid and subject to challenge in court.
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