N.H. Rev. Stat. § 270-E:10
The owner shall furnish the department written notice of the transfer of all or any part of his or her interest, other than the creation of a security interest, in a vessel registered in this state pursuant to this chapter or the destruction or abandonment of such vessel within 15 days of its transfer, destruction, or abandonment. Such transfer, destruction, or abandonment shall terminate the certificate of numbers for such vessel, except that in the case of a transfer of a part interest which does not affect the owner's rights to operate such vessel, the transfer shall not terminate the certificate of numbers. If a vessel is transferred, the original number shall be retained by the new owner. A person who transfers the ownership of a vessel, upon filing a new application, may have another boat registered in his or her name for the remainder of the period for which the vessel is registered for $5.
RSA 270-E:10
1990, 229:1. 2009, 144:147, eff. Aug. 28, 2009.