"Parole plan", a plan, approved by the parole board, that includes the general and special conditions of parole and requirements for:
"Release to supervision date", the date which has been determined by deductions from the maximum term of a prisoner's sentence for good conduct deductions under section 129C, subsection (a) of section 129D and a further deduction for any program completion credits earned under subsection (c) of section 129D; provided however, that such date shall not be earlier than the date which has been determined by reducing a prisoner's imposed maximum term of sentence by 35 per cent.
These records shall be made available to the parole board so as to be readily accessible when the parole or pardon of such prisoner is being considered.
Mass. Gen. Laws ch. 127, § 130B