N.H. Rev. Stat. Ann. § 227-H:9

The commissioner may make contracts for the leasing of privileges and concessions on state reservations, for periods not exceeding 5 years, except such 5-year limitation shall not apply to contracts between the state and the 4-H Foundation of New Hampshire, Incorporated, relative to facilities at Bear Brook state park. All such contracts extending for a period of more than 3 years or for an annual consideration of more than $2,500 shall be approved by the governor and council prior to being effective.