The Wetlands Reserve Program (WRP) aims to protect, restore, and enhance wetlands through voluntary landowner participation. In Iowa, the state conservationist mandated the use of third-party vendors like AES to implement WRP projects faster and better. AES has restored over 60 sites and 3,000 acres in Iowa, bringing expertise in wetland science and construction. Their large native plant nursery allows them to cost-effectively source appropriate plant mixtures meeting Iowa's rigorous standards of 30-50 species per site. By the end of 2014, AES' work in Iowa included seeding, excavating, and planting across thousands of acres as well as installing water control structures.