As a condition to the extending of any benefits under this chapter to, or the performance of work upon, any lands not owned or controlled by this state or any of its agencies, the directors may require contributions in money, services, materials, or otherwise to any operations conferring those benefits, and may require land occupiers to enter into and perform any agreements as to the use of their lands as may be consistent with the purposes of this chapter; however, required contributions must be approved as to amount and content by the state conservation committee.
R.I. Gen. Laws § 2-4-13