Notwithstanding any other provisions of this article, the joint committee shall recommend model practice protocols to be used by certified registered nurse practitioners and certified nurse midwives and a formulary of legend drugs that may be prescribed by these advanced practice nurses, subject to approval by both the State Board of Medical Examiners and the Board of Nursing. The joint committee shall also recommend rules and regulations to establish the ratio of physicians to certified registered nurse practitioners and certified nurse midwives; provided, however, that the rules and regulations shall not limit the ratio to less than two nurse practitioners or midwives to one physician or one certified registered nurse practitioner and one certified nurse midwife to one physician and shall provide for exceptions. The joint committee shall also recommend rules and regulations that establish the manner in which a collaborating physician may designate a covering physician when temporarily unavailable as the collaborating physician.