If a complaint is not resolved by the committee within 15 calendar days, the complaint shall be referred by the committee to the division where it shall be reviewed. When the division receives a complaint which, in its determination, constitutes a bona fide allegation of a safety or health violation, the division shall summarily investigate the same as soon as possible, but not later than three working days after receipt of a complaint charging a serious violation, as defined in Section 6309, and not later than 14 calendar days after receipt of a complaint charging a nonserious violation.
Ca. Lab. Code § 6304.3