SECTION 25B. Applicability of statute relating to insurance and self-insurers; employer bringing employees within statute

Section twenty-five A shall not apply to the commonwealth, the Massachusetts Turnpike Authority, the Massachusetts Bay Transportation Authority, the Massachusetts Port Authority or the various counties, cities, towns and districts provided for in sections sixty-nine to seventy-five, inclusive. Any employer may bring an employee or employees for whom he is not required by this chapter to provide for the payment of compensation within the coverage of this chapter by providing for the payment of compensation to such employee or employees as provided by this chapter.