A person who declares that he has conscientious scruples against taking an oath shall, when called upon for that purpose, be permitted to affirm in the manner prescribed for Quakers, if the court or magistrate on inquiry is satisfied of the truth of such declaration.
Mass. Gen. Laws ch. 233, § 18
Affirmation for reasons of conscience
Official source: Massachusetts Legislature. Reproduced from public-domain Massachusetts statutes; confirm against the official source for the current text. Not legal advice.