Hawaii Revised Statutes Division 2. Business § 431:12-109

Except as provided by section 431:12-108, no policy of an individual employee or participation of an employee in a group policy shall be cancelled or its renewal denied unless a thirty-day written notice of cancellation or renewal is given the employee. All such notices shall set forth the reasons for the cancellation or nonrenewal. The insurer, prior to the expiration of the thirty-day period, shall afford the employer a reasonable opportunity to consult with the insured and to present facts in opposition to cancellation or nonrenewal.