N.H. Rev. Stat. Ann. § 264:1

The director shall administer and enforce the provisions of this chapter, and he is authorized to adopt pursuant to RSA 260:5 and enforce such rules as may be necessary for its administration. Any person aggrieved by an order or act of the department hereunder may, within 10 days after notice thereof, file a petition for a review in the superior court of the county in which one of the parties resides, and if both plaintiff and defendant are nonresidents, then in the county where the accident occurred; but the filing of such petition shall not suspend the order or act unless a stay thereof shall be allowed by said court pending final determination of the review. The court shall summarily hear the petition and may make any appropriate order or decree.