(a) Any employer utilizing the services of a certified preferred provider organization shall distribute to all of its employees a written notice of the preferred provider organization arrangement for the treatment of all workers' compensation injuries and illnesses. Such written notice shall also advise potential claimants that they may obtain more detailed informational materials regarding the preferred provider organization from the employer.

(b) Where there is a duty to collectively bargain for the utilization and implementation of a preferred provider organization, an employer must engage in such bargaining and must file with the board a notarized affirmation signed by the collective bargaining agent(s) confirming that the requisite negotiation of the selection of a preferred provider organization has taken place and that the particular union and individual agent(s) which have agreed to such preferred provider organization are the recognized or certified exclusive bargaining representatives of the covered employees. All agreements shall clearly state the duration of such agreement and all subsequent agreements shall be subject to the same prior review and approval by the collective bargaining agent(s).