Massachusetts General Laws 

No man shall marry his mother, grandmother, daughter, granddaughter, sister, stepmother, grandfather's wife, grandson's wife, wife's mother, wife's grandmother, wife's daughter, wife's granddaughter, brother's daughter, sister's daughter, father's sister or mother's sister.

No woman shall marry her father, grandfather, son, grandson, brother, stepfather, grandmother's husband, daughter's husband, granddaughter's husband, husband's grandfather, husband's son, husband's grandson, brother's son, sister's son, father's brother or mother's brother.MGL

On or after the third day from the filing of notice of intention of marriage, except as otherwise provided, but not in any event later than sixty days after such filing, the clerk or registrar shall deliver to the parties a certificate signed by him, specifying the date when notice was filed with him and all facts relative to the marriage which are required by law to be ascertained and recorded, except those relative to the person by whom the marriage is to be solemnized. Such certificate shall be delivered to the minister or magistrate before whom the marriage is to be contracted, before he proceeds to solemnize the same. If such certificate is not sooner used, it shall be returned to the office issuing it within sixty days after the date when notice of intention of marriage was filed.

If it appears from the statements made in the written notice of intention of marriage that a party to such intended marriage is under eighteen, the clerk or registrar shall not, except as required under section twenty-five, issue a certificate under section twenty-eight before receiving proof of the age of the parties. Such proof shall be contained in any of the following documents, graded and taking precedence in the order named: (1) an original or certified copy of a record of birth; (2) an original or certified copy of a baptismal record; (3) a passport; (4) a life insurance policy; (5) an employment certificate; (6) a school record; (7) an immigration record; (8) a naturalization record; or (9) a court record. Documentary evidence of a lower grade as aforesaid shall not be received by the clerk or registrar unless he is satisfied that evidence of a higher grade is not readily procurable. If no such documentary proof of age is procurable, the consent of the parent shall be sufficient. If the clerk or registrar has reasonable cause to believe that a party to an intended marriage represented to be eighteen or over, is under such age, he shall, before issuing such certificate, require documentary proof of age as aforesaid.

Section 38. A marriage may be solemnized in any place within the commonwealth by the following persons who are residents of the commonwealth: a duly ordained minister of the gospel in good and regular standing with his church or denomination, including an ordained deacon in The United Methodist Church or in the Roman Catholic Church; a commissioned cantor or duly ordained rabbi of the Jewish faith; by a justice of the peace if he is also clerk or assistant clerk of a city or town, or a registrar or assistant registrar, or a clerk or assistant clerk of a court or a clerk or assistant clerk of the senate or house of representatives, by a justice of the peace if he has been designated as provided in the following section and has received a certificate of designation and has qualified thereunder; an authorized representative of a Spiritual Assembly of the Baha'is in accordance with the usage of their community; a priest or minister of the Buddhist religion; a minister in fellowship with the Unitarian Universalist Association and ordained by a local church; a leader of an Ethical Culture Society which is duly established in the commonwealth and recognized by the American Ethical Union and who is duly appointed and in good and regular standing with the American Ethical Union; the Imam of the Orthodox Islamic religion; and, it may be solemnized in a regular or special meeting for worship conducted by or under the oversight of a Friends or Quaker Monthly Meeting in accordance with the usage of their Society; and, it may be solemnized by a duly ordained nonresident minister of the gospel if he is a pastor of a church or denomination duly established in the commonwealth and who is in good and regular standing as a minister of such church or denomination, including an ordained deacon in The United Methodist Church or in the Roman Catholic Church; and, it may be solemnized according to the usage of any other church or religious organization which shall have complied with the provisions of the second paragraph of this section.

Churches and other religious organizations shall file in the office of the state secretary information relating to persons recognized or licensed as aforesaid, and relating to usages of such organizations, in such form and at such times as the secretary may require.

Section 39. The governor may in his discretion designate a justice of the peace in each town and such further number, not exceeding one for every five thousand inhabitants of a city or town, as he considers expedient, to solemnize marriages, and may for a cause at any time revoke such designation. The state secretary, upon payment of twenty-five dollars to him by a justice of the peace so designated, who is also a clerk or an assistant clerk of a city or town or upon the payment of fifty dollars by any other such justice, shall issue to him a certificate of such designation.
 

The state secretary may authorize, subject to such conditions as he may determine, the solemnization of any specified marriage anywhere within the commonwealth by the following nonresidents: a minister of the gospel in good and regular standing with his church or denomination; a commissioned cantor or duly ordained rabbi of the Jewish faith; an authorized representative of a Spiritual Assembly of the Baha'is in accordance with the usage of their community; the Imam of the Orthodox Islamic religion; a duly ordained priest or minister of the Buddhist religion; a minister in fellowship with the Unitarian Universalist Association and ordained by a local church; a leader of an Ethical Culture Society which is recognized by the American Ethical Union and who is duly appointed and in good and regular standing with the American Ethical Union; a justice of a court or a justice of the peace authorized to solemnize a marriage by virtue of their office within their state of residence; and, it may be solemnized in a regular or special meeting for worship conducted by or under the oversight of a Friends or Quaker Monthly Meeting in accordance with the usage of their Society. A nonresident may solemnize a marriage according to the usage of any church or religious organization which shall have complied with the provisions of the second paragraph of section 38. A certificate of such authorization shall be issued by the state secretary and shall be attached to the certificate issued under section twenty-eight and filed with the appropriate city or town clerk. If one of the nonresidents enumerated above solemnizes a specified marriage anywhere within the commonwealth without having obtained a certificate under this section, the state secretary, upon application of such person, may issue a certificate validating such person's acts. The certificate of validation shall be filed with the certificate issued under section twenty-eight of chapter two hundred and seven.
 

In addition to the foregoing, the governor may designate any other person to solemnize a particular marriage on a particular date and in a particular city or town, and may for cause at any time revoke such designation. The state secretary, upon the payment to him of twenty-five dollars by said other person, shall issue to said person a certificate of such designation. Such certificate shall expire upon completion of such solemnization.
 

In addition to the foregoing, the governor may designate any other person to solemnize a particular marriage on a particular date and in a particular city or town, and may for cause at any time revoke such designation. The state secretary, upon the payment to the secretary of $25 for applications delivered by mail, facsimile or hand or $20 for applications submitted electronically, shall issue to said person a certificate of such designation. Such certificate shall expire upon completion of such solemnization.