N.H. Rev. Stat. § 21-G:5

In this chapter: I. "Administratively attached agency" means an independent agency linked to a department for purposes of reporting and sharing support services. II. "Administrative head of the agency" means the individual, by whatever title conferred upon them by the relevant statute, who is in charge of operations of an executive agency, executive commission, or administratively attached agency. III. "Advisory committee" means a committee established pursuant to RSA 21-G:11 which shall furnish advice, gather information, make recommendations and perform such other activities as may be instructed or as may be necessary to fulfill advisory functions or to comply with federal funding requirements, but which shall not administer a program or function or set policy. IV. "Agency" means any department, commission, board, institution, bureau, office, or other entity, by whatever name called, other than the legislative and judicial branches of state government, established in the state constitution, statute, session law, or executive order. V. "Bureau" means the principal unit within a division, which is directly responsible to the division level and is concerned with individual program management. VI. "Commissioner" means the individual in charge of the operations of an executive department, who is directly responsible to the governor. VII. "Constitutional office" means an executive department that also comprises a constitutional office established by the state constitution and common law practice. VIII. "Division" means the principal unit within a department, which is directly responsible to the department level and is concerned with related major functional programs and activities. IX. "Executive agency" means an administrative unit within the executive branch of state government, which is concerned with a specific objective or administrative function. X. "Executive commission" means an administrative unit within the executive branch of state government established to provide a specific enterprise or regulatory function. XI. "Executive department" means the principal administrative unit within the executive branch of state government, which is concerned with broad functional responsibilities. XII. "Field operations" means district or area offices which may combine division, bureau, and section functions. XIII. "Section" means the principal unit of a bureau, which is directly responsible to the bureau level and is concerned with direct provision of services to the public or other state agencies.