N.H. Rev. Stat. Ann. § 21-L:4-a

The commissioner of transportation is authorized to prepare, publish, and distribute reports, manuals, plans, specifications, charts, surveys, or other documents consistent with the responsibilities of the department. The commissioner may charge fees to reimburse the department for costs incurred in copying such documents, and for applicable mailing costs. The commissioner shall publish a schedule of reimbursement fees to be approved by the fiscal committee of the general court. The schedule of reimbursement fees may be updated on a bi-annual basis.