Massachusetts General Laws Part I. Administration of the Government (Ch. 1-182) Ch. 112, § 121

Notwithstanding the provisions of section one hundred and twenty, the board may issue a license without examination to an applicant who presents evidence that he has been licensed or certified as a psychologist by a similar board of another jurisdiction whose standards, in the opinion of the board, are not lower than those required in the commonwealth; or that he holds a diploma from a nationally recognized board or agency approved by the board.