N.H. Rev. Stat. § 211:64-b
No person shall at any time take clams for such person's own use unless the person is a resident of the state and has been duly licensed as provided in this section. Any person 6 years of age or older shall, upon application to the executive director of the fish and game department, be granted a license to take clams for recreational purposes upon payment of a fee set by the executive director pursuant to RSA 206:10, I. Such license shall be issued for the current calendar year. A resident of the state may take up to one quart of clamworms during any one day for such person's own use without a license. A person who furnishes to another person or permits another person to have or use the person's recreational clam license or the license of any other person, or changes or alters such license or uses a license issued to another person, or makes a false statement in an application to obtain said license shall be subjected to the penalty under RSA 211:64.
RSA 211:64-b
1995, 238:7. 1997, 10:12. 2001, 252:9, eff. Jan. 1 2002; 252:10, eff. Jan. 1, 2003. 2015, 186:22, eff. July 1, 2015.