Notwithstanding any other provision of this section, the commission shall certify to the parties, in writing, and the employer shall recognize as the exclusive representative for the purposes of collective bargaining of all the employees in the bargaining unit, a labor organization which has received a written majority authorization, but this shall apply only when no other labor organization has been and currently is lawfully recognized as the exclusive representative of the employees in the appropriate bargaining unit. Whenever a labor organization proffers evidence that it has received a written majority authorization, the labor organization and the employer shall agree upon a neutral to conduct a confidential inspection of the evidence of a written majority authorization. If within 10 days the labor organization and the employer do not agree upon a neutral, the commission shall act as the neutral. The neutral shall verify the labor organizations majority support within the appropriate bargaining unit and report the results of its inspection in writing to the parties and, if the verification was conducted by an agreed neutral, to the commission, which shall in turn certify the results to the parties in writing. The commission shall establish rules and procedures for the prompt verification of evidence of a written majority authorization, which rules shall include safeguards to protect the privacy of individual employee choice, and which shall further provide that, absent exceptional cause, the verification procedure shall last not longer than 30 days after the appointment of the neutral or after the assumption by the commission of the duties of the neutral. As used in this paragraph, the term employer shall not include a health care facility, a nonprofit institution or a vendor who contracts with or receives funds from the commonwealth or a political subdivision thereof to provide social, protective, legal, medical, custodial, rehabilitative, respite, nutritional, employment, educational, training or other similar services to the commonwealth or a political subdivision thereof.
Mass. Gen. Laws ch. 150A, § 5