N.H. Rev. Stat. § 21-P:6

There is established within the department the division of administration under the supervision of an unclassified director of administration who shall, in accordance with applicable laws, be responsible for the following functions: I. Accounting, purchasing, and budget control. II. Personnel management. III. Property, contracts, and grants management. IV. Data processing. V. Assistance to the commissioner with short and long range department level planning activities. VI. [Repealed.] VII. [Repealed.] VIII. Collection of fuel taxes and administration of road tolls and the audit functions of the international registration plan under RSA 260. IX. Appointment, with the approval of the commissioner, of a road toll administrator who shall be a classified employee and who shall, under the supervision of the director of administration, be responsible for administration of the motor vehicle road toll law and the fuel tax agreement. The director of administration may delegate to the administrator authority to sign and execute any documents pertaining to the director's work and such documents so signed by the road toll administrator shall have the same effect as though signed by the director.