Mass. Gen. Laws ch. 191B, § 3 – Incorporation by reference

(a) A will may incorporate by reference the provisions of this chapter in whole or in part and with any modifications and additions the will provides. To the extent an express provision of a will conflicts with this chapter, the terms of the will shall govern.
(b) A provision that all or part of the testator's testamentary estate is to be disposed of in accordance with the provisions of this chapter incorporates by reference provisions of this chapter in effect on the date the will is executed.
(c) An incorporation by reference of provisions of this chapter may be in the following or a substantially similar form:
''Except as otherwise provided in this will, I direct that my testamentary estate be disposed of in accordance with the Massachusetts Uniform Statutory Will Act.''