Purchase of agricultural conservation easement (PACE) programs, also known as purchase of development rights (PDR) programs, pay landowners to keep their land available for agriculture. These voluntary programs fund the purchase of agricultural conservation easements (ACEs) from landowners. In general, programs are authorized and administered by state or local governments and may be supported by land trusts and conservation districts. This fact sheet describes what a PACE program is, as well as program components such as program authorization, funding sources, considerations for program implementation, and monitoring and stewardship.