Mass. Gen. Laws ch. 33, § 13
(a) As used in this section, the following words shall, unless the context clearly requires otherwise, have the following meanings:—
''Benefit of employment'', shall have the same meaning as defined in 38 U.S.C. section 4303 (2) and shall include a workplace free of conduct that has the purpose or effect of unreasonably interfering with an individual's work performance by creating an intimidating, hostile, humiliating or offensive work environment.
''Service in the uniformed services'', shall have the same meaning as defined in 38 U.S.C. section 4303 (13) and shall include voluntary or involuntary service in the armed forces of the commonwealth as defined in section 10, including the state defense force or similar organization composed as permitted by law, in the state staff or in the armed forces of another state or territory.
''Uniformed services'', shall have the same meaning as defined in 38 U.S.C. section 4303 (16) and shall include: (i) the armed forces of the commonwealth, including the state defense force or similar organization composed as permitted by law; (ii) the state staff when engaged in duty under this chapter or Title 32 of the United States Code; or (iii) the armed forces of another state or territory when ordered to active duty under appropriate authority.