Habitat preservation agreements offer the potential to improve both our knowledge of where endangered species occur and our ability to conserve them by enlisting the willing cooperation of private landowners.
In the United States, "safe harbor agreements" are agreements between a non-federal landowner and the US Fish and Wildlife Service (FWS) or National Marine Fisheries Service in which the landowner agrees to restore or enhance the habitat of an endangered or threatened species and FWS agrees that it will not impose added restrictions on the landowner as a result of the species being attracted to, or increasing in, the area where the restoration was done. In safe harbor agreements, landowners have no immediate intention to do anything harmful to an endangered species or its habitat, but while the intention is to make a positive contribution, the land owner reserves the right to change their minds in the future and to undo the improvements they have implemented if they so wish. The important concept behind safe harbor agreements is that the current situation for an endangered species gets no worse.