NEP's projects and pipelines are subject to numerous environmental, health and safety laws, regulations, guidelines, policies, directives and other requirements governing or relating to, among other things: • the protection of wildlife, including, but not limited to, migratory birds, bats and threatened and endangered species, such as desert tortoises, or protected species, such as eagles, and other protected plants or animals whose presence or movements often cannot be anticipated or controlled; • the storage, handling, use and transportation of natural gas as well as other hazardous or toxic substances and other regulated substances, materials, and/or chemicals; • air emissions, water quality, releases of hazardous materials into the environment and the prevention of and responses to releases of hazardous materials into soil and groundwater; • federal, state or local land use, zoning, building and transportation laws and requirements, which may mandate conformance with sound levels, radar and communications interference, hazards to aviation or navigation, or other potential nuisances, such as the flickering effect, caused when rotating wind turbine blades periodically cast shadows through openings, such as the windows of neighboring properties, which is known as shadow flicker; • the presence or discovery of archaeological, religious or cultural resources at or near NEP's projects or pipelines; and • the protection of workers’ health and safety.