(1) Persons who are certified as a limited mental health professional person as of the date of final adoption of these rules will be granted facility mental health certification for the facility in which they are employed on that date until the expiration date of their present certification or for 1 year, whichever is greater. To continue facility mental health certification thereafter the previously certified individual must meet the requirements of ARM 37.91.406. The certification committee may, upon request of the previously certified individual and concurrence of the facility's superintendent or director, waive the requirement of completion of the facility's approved training program.