Some countries are part of THE HAGUE CONVENTION and require APOSTILLES on documents which are going to be filed in their countries. A listing of countries belonging to The Hague Convention, as well as in-depth information on what the Hague Legalization Convention is all about can be found here.
Documents going to countries NOT listed above will usually require a regular certificate of the notary public or justice of the peace.
CERTIFIED COPIES OF VITAL RECORDS
RSA 5-C:98 Vital Records Copies. I. A vital record may NOT be issued, duplicated, sealed, or notarized by any persons other than the division or clerks of towns and cities. These restrictions shall not apply to vital records in the public domain unless a certified copy is requested.
II. Certified copies of vital records shall be issued to the public only by the state registrar or a clerk of a town or city in accordance with this chapter.
RSA 5-C:99 Apostille Records. An apostille record means a vital record document which contains the certification as provided for in the 1961 Hague Convention and which is recognized in the United States and other certifying countries as a certified document. An apostille record shall be prepared in the same manner as required for a certified copy and shall contain the following: the signature of the state registrar or the clerk of the town or city; the notarized acknowledgement of the state registrar or clerk and acknowledgement of the document by the New Hampshire secretary of state, including his or her signature and seal.
The Secretary of State's Office will NOT put an apostille on a vital record if it is not submitted in the proper form as stated above.