Mass. Gen. Laws ch. 175M, § 3
(b)
(c) The weekly benefit amount shall be reduced by the amount of wages or wage replacement that a covered individual receives for that period under any of the following while on family or medical leave:
(i) any government program or law, including but not limited to workers' compensation under chapter 152, other than for permanent partial disability incurred prior to the family or medical leave claim, or under other state or federal temporary or permanent disability benefits law, or (ii) a permanent disability policy or program of an employer.
[Second paragraph of subsection (c) effective for claims filed on or after November 1, 2023. See 2023, 55 Sec. 2.]