The commission shall thereafter conduct hearings on any proposal to adopt the petition in whole or in part in the manner specified in subdivision (c) of Section 1178.5 and publish the proposed action in the manner provided in Section 1181. However, the hearings shall be conducted within 90 days of the date the petition is originally filed.
If a substantive change is made to the original proposal after the close of the public hearing, the full text of the resulting change shall be noticed within five days and made available to the public for comments for at least 10 days before the commission adopts, amends, or repeals the regulation. No later than 10 days following the close of the public comment period, the commission shall take final action with respect to its modified proposal, and give notice of that action within 10 days in the manner provided in Sections 1182.1 and 1183. In no case shall any action adopting, amending, or repealing an order take effect more than 60 days following the close of the public comment period.
Ca. Lab. Code § 1182.7