Mass. Gen. Laws ch. 3, § 38C
(d) The party or organization on whose behalf the bill was filed shall provide the center for health information and analysis with any cost or utilization data that they have. All interested parties supporting or opposing the bill shall provide the center for health information and analysis with any information relevant to the division's review. The center shall enter into interagency agreements as necessary with the office of Medicaid, the group insurance commission, the department of public health, the division of insurance and other state agencies holding utilization, cost or claims data relevant to the center's review under this section. Such interagency agreements shall ensure that the data shared under the agreements is used solely in connection with the center's review under this section, and that the confidentiality of any personal data is protected. The center for health information and analysis may also request data from insurers licensed or otherwise authorized to transact accident or health insurance under chapter 175, nonprofit hospital service corporations organized under chapter 176A, nonprofit medical service corporations organized under chapter 176B, health maintenance organizations organized under chapter 176G, and their industry organizations to complete its analyses. The center for health information and analysis may contract with an actuary, or economist as necessary to complete its analysis. The report shall include, at a minimum and to the extent that information is available, the following: