Cal. Pub. Util. Code § 4455

Except as specified in Section 4456, after each inspection, the commission shall furnish the operator, or a representative designated in writing by the operator, with a written copy of the inspection report within 30 days of the inspection. The report shall indicate any violations of applicable federal or state pipeline safety regulations. The operator shall then file, within 30 days, a written response with the commission that acknowledges receipt of the report and specifies a compliance plan for correcting the safety violations, including, if appropriate, a timetable for completing necessary repairs or improvements to the distribution system.