This memorandum is in response to your request for an opinion concerning the use of
                  a New Hampshire same-sex marriage certificate as proof of a name change following
                  the recent enactment of New Hampshire’s Equal Access to Marriage statute, N.H. REV.
                  STAT. ANN. § 457:1-a, which became effective on January 1, 2010. Specifically, you
                  requested an opinion as to whether New Hampshire state law allows an individual to
                  change his or her legal name after entering into a same-sex marriage in New Hampshire.
                  You also inquired (1) whether State law permits the parties to change their names
                  based on the marriage; (2) whether any restrictions might apply; (3) whether an individual
                  must take additional action to effectuate the name change; (4) the date that the State
                  began issuing marriage licenses and certificates to same-sex couples; (5) the impact
                  of the same-sex marriage laws upon previously existing civil unions or domestic partnerships;
                  (6) whether a same-sex couple must dissolve a previous civil union or domestic partnership
                  prior to entering into a marriage; (7) whether a same-sex civil union is automatically
                  dissolved when a same-sex marriage occurs; and (8) the nature of the procedures for
                  dissolution of a New Hampshire same-sex marriage.
               
               As set forth below, an individual may change his or her name for any lawful reason
                  in New Hampshire. A New Hampshire same-sex marriage certificate may be used in the
                  same manner as any other New Hampshire marriage certificate as proof of a name change
                  in New Hampshire, with one possible exception detailed below. No action is necessary
                  to effectuate a name change other than usage, and the only restriction on a name change
                  is that the name change cannot be made for a fraudulent, criminal or wrongful purpose.
                  New Hampshire began issuing marriages licenses and certificates to same-sex couples
                  on January 1, 2010. With respect to civil unions, same-sex couples may opt to have
                  their civil unions “solemnized” and merged into a marriage prior to January 1, 2011;
                  after January 1, 2011, all remaining, effective civil unions will be merged into marriages
                  by operation of law, without any act of the parties. A same-sex marriage is dissolved
                  in the same manner as any other marriage, and a same-sex marriage dissolution or annulment
                  decree may also be used as proof of a name change.
               
               ANALYSIS
               Generally, New Hampshire follows the common law with respect to name changes, under
                  which a person may lawfully change his or her name without resort to any legal proceedings
                  where such a change is not made for a fraudulent, criminal or wrongful purpose. Moskowitz v. Moskowitz, 385 A.2d 120, 122 (N.H. 1978). Those statutes that New Hampshire has enacted pertaining
                  to name changes setting forth procedures for implementing name changes “do not abrogate
                  or supersede common law, but merely affirm and aid it.”  Id. Therefore, under New Hampshire law, an individual may change his or her name for
                  any reason (so long as such a change is not made for a fraudulent, criminal, or wrongful
                  purpose), including based on entering into a New Hampshire same-sex marriage or the
                  dissolution of a New Hampshire same-sex marriage.
               
               Under common law, a name change is effectuated simply by use of the new name. 57 AM.
                  JUR. 2d Name § 16 (2010). Thus, any document showing use of the new name could conceivably serve
                  as an indication that a name change has occurred. See, e.g., N.H. CODE ADMIN. R. ANN. Saf-C 511.08(b) (2010) (permitting change of name on driver’s
                  license with evidence of name change petition, marriage certificate, divorce decree,
                  passport, adoption decree, court decree, or notarized statement); N.H. CODE ADMIN.
                  R. Den 301.07 (2010) (requiring “copy of the documentation that legally changed the
                  name, if any” for New Hampshire Board of Dental Examiners); N.H. ADMIN. R. Bar. 302.07
                  (h)(1)(c) (requiring “a copy of official documentation, such as a marriage license,
                  court paper, [or] divorce decree” for Board of Barbering, Cosmetology and Esthetics).
                  While an individual may petition the court for a name change under N.H. REV. STAT.
                  ANN. § 547:3-i (2010) (permitting name change generally) or N.H. REV. STAT. ANN. §
                  490-D:2(X) (2010) (permitting name change relative to a family court matter), such
                  a petition is not necessary under New Hampshire law.  M~, 385 A.2d at 122. We could find no New Hampshire legal authority requiring that an
                  individual take additional action other than usage to change his or her name.
               
               More specifically, your inquiries are addressed in turn:
               1. Whether the State permits parties to the same-sex marriage to change their names,
                     first name, and/or surname, based on the marriage. 
               Yes. New Hampshire no longer differentiates between same-sex marriages and heterogeneous
                  marriages: both categories have been subsumed within a single definition of marriage
                  under New Hampshire law. See N.H. REV. STAT. ANN. § 457:1-a (2010). Thus, the procedures for effectuating name
                  changes for same-sex couples are the same as those for heterogeneous couples. New
                  Hampshire permits the use of an original or certified copy of a marriage certificate
                  as proof of a name change. See, e.g., N.H. CODE ADMIN. R. Saf-C 511.08(b) (2010) (concerning name changes for driver’s
                  licenses). Thus, a name change request based upon a New Hampshire same-sex marriage
                  certificate should be processed under Program Operating Manual System (POMS) RM 00203.210.B in the same manner as a name change request based upon any other New Hampshire
                  marriage certificate.
               
               2. Whether there are any restrictions on such name changes.
               Yes, but the restriction is minor. In almost all respects, New Hampshire’s legislation
                  simply expanded the definition of marriage to include same-sex couples.
               
               However, New Hampshire does not permit marriages between individuals of the same sex
                  under the age of 18, and any purported same-sex marriage involving an individual under
                  the age of 18 is null and void. N.H. REV. STAT. ANN. § 457:4 (2010). Thus, a marriage
                  certificate issued to a same-sex couple would be without any legal effect if one of
                  the individuals is under the age of 18.
               
               3. Whether there are any additional actions that the individual must take to change
                     his or her name to conform to State Law after entering into the same-sex marriage.
                     
               No. As explained above, no specific formal actions are required to effectuate a name
                  change under New Hampshire law. This is true with respect to same-sex marriages to
                  the same extent as other marriages.
               
               4. The date the State will begin issuing marriage licenses and certificates to same-sex
                     couples. 
               New Hampshire began issuing such marriage licenses and certificates on the effective
                  date of the amendment to the State’s definition of marriage, January 1, 2010. See  N.H. REV. STAT. ANN. 457:1-a (2010).
               
               5. Any change to the status of prior or new civil unions or domestic partnerships
                     entered into in the same State.
               New Hampshire law prohibits the establishment of new civil unions after January 1,
                  2010. N.H. REV. STAT. ANN. § 457:46(I) (2010). Meanwhile, parties to a civil union
                  entered into prior to January 1, 2010, are eligible to “merge” their effective civil
                  union into a marriage at any time prior to January 1, 2011. Id. As of January 1, 2011, all individuals party to an effective civil union, and who
                  have not already merged their civil union into a marriage, shall be deemed married
                  by operation of law.  Id. § 457:46(II).
               
               We note that New Hampshire does not accord any special recognition to domestic partners.
                  In New Hampshire, the term ‘domestic partner’ means an individual who shares a domicile
                  and the expenses of daily living with another person, but who are not joined in a
                  legal marriage or civil union under New Hampshire law.” N.H. CODE ADMIN. R. ANN. Jus
                  602.12 (2010). Thus, individuals in relationships falling into the category of domestic
                  partnerships will not be impacted.
               
               6. Whether a prior entered civil union and domestic partnership must be dissolved
                     before entering a same-sex marriage. 
               As indicated immediately above, same-sex couples may apply to have their civil unions
                  “merged” into marriages on or before January 1, 2011. As of January 1, 2011, all same-sex
                  couples in effective civil unions will be deemed married. Any couple that wishes to
                  have a civil union formally solemnized as a marriage should apply for merger between
                  January 1, 2010, and January 1, 2011. After that time, the couple will already be
                  married by operation of law. As stated above, domestic partnerships will not be affected.
               
               7. Whether a same-sex civil union is automatically dissolved when a same-sex marriage
                     occurs. 
               As explained above, a civil union may be converted through the process established
                  by the legislature between January 1, 2010, and January 1, 2011. N.H. REV. STAT. ANN.
                  § 457:46(I) (2010). After that point, the same-sex couple would automatically be deemed
                  married without independent action.  Id. § 457:46(I).
               
               8. Procedures for the dissolution of a New Hampshire same-sex marriage and the relevant
                     documentation that would allow Social Security to change a name to a prior name in
                     the event of the dissolution. 
               With respect to the dissolution of a New Hampshire same-sex marriage, New Hampshire’s
                  statutes concerning dissolution of a heterogeneous marriage apply equally to a New
                  Hampshire same-sex marriage. See also N.H. REV. STAT. ANN. § 457-1-a (2010) (redefining marriage to include same-sex couples).
                  In New Hampshire a marriage is dissolved by a decree of divorce or nullity. N.H. REV.
                  STAT. ch. 458. Under N.H. REV. STAT. ANN. § 458:24 (2010), at the time of entry of
                  a decree of divorce or nullity, upon the request of either party, the court shall
                  restore a person’s former name. New Hampshire state agencies appear to accept as proof
                  of a name change a certified copy of a divorce decree. See, e.g., N.H. CODE ADMIN. R. ANN. Saf-C 511.08(b) (2010). Furthermore, given the common law
                  right to change names for any reason, we conclude that an individual may change his
                  or her name as a result of the dissolution of a same-sex marriage without requesting
                  that a court restore a former name. As previously discussed, under the common law,
                  such a change may be effectuated simply by use of the new name.
               
               Conclusion 
               Based on the above analysis, we conclude that an individual may change his or her
                  name for any lawful reason in New Hampshire. A New Hampshire same-sex marriage certificate
                  may be used in the same manner as any other New Hampshire marriage certificate as
                  proof of a name change in New Hampshire. Given the New Hampshire legislature’s election
                  simply to redefine marriage to include same-sex marriages, the agency can comfortably
                  employ the same procedures that it uses with respect to name changes following heterogeneous
                  marriages.