(a) All ambulance services providing emergency care as defined by the rules and regulations adopted by the board shall offer service 24 hours per day every day of the year.

(b) Whenever an operator is required to have a permit, at least one person on each vehicle providing emergency medical service shall be an emergency medical service provider certified pursuant to Kan. Stat. Ann. § 65-6119, 65-6120 or 65-6121, and amendments thereto, a physician, a physician assistant, an advanced practice registered nurse or a professional nurse.