Overseeing programs for environmental preservation and conservation, Cuomo implemented aggressive initiatives in these areas. Some established jurisdictions require adherence to design and historic preservation guidelines. It provides homeowners with information on historic preservation and renovation. The city has substantial activity in urban design, historic preservation, and architecture. There is increasing interest in improving methods for allograft preservation following organ harvesting. Aman mandates a concern for cultural preservation. Washtenaw county is in the process of acquiring land for natural preservation. Historic preservation city planning began in 2016. The tomb remains unopened, possibly due to concerns over preservation of its artifacts. Methods of food preservation continued to develop. Its aim was to ensure the preservation and growth of fighter aircraft production. Lancaster County leads the nation in farmland preservation. The wheel portrays the cycle of creation, preservation and release. The passageway was then covered in plywood for preservation purposes. This has created a national cuisine marked by the preservation of regional differences.