NEPA stands for the National Environmental Policy Act. NEPA is considered an umbrella policy, in which several policies, laws, and acts fall underneath it. Some of these laws are the Clean Air Act, the Clean Water Act, the Endangered Species Act, and many more. The goal of NEPA is to establish environmental federal standards that all states must comply with. Enacted in 1970, NEPA was founded due to a series of several events. Rachel Carson’s book, Silent Spring, brought about a movement of environmental awareness and public support for environmentalism. At the same time, the National Highway System was also being built, establishing a network of roads that frequently blasted through communities and ecosystems alike, much to the chagrin of United States citizens.
An important distinction to make here is that NEPA and the EPA are separate – they are not one in the same, although they were established at the same time. The EPA is a governmental organization while NEPA is a collection of laws and policies. In short, the EPA enforces NEPA (among other agencies). Another important government organization that’s related to NEPA is the United States Department of Transportation (USDOT) and the Federal Highway Administration (FHWA). Both of these are important in the process of planning and implementation of roadways.
In a 2016 act, USDOT passed the responsibilities of the FHWA to the Florida Department of Transportation, giving the state approval authority under NEPA. This means that the state of Florida is now able to govern most of its own planning and construction.
The planning process begins with the PEL process – Planning and Environmental Linkages. This process is done at the outset of a project in order to see what is needed in an area and how best to improve something. It is essentially the research that occurs before a project is fully formed. It is important to note that the research done during this period expires after five years. This means that NEPA has five years to act on this information or the research will have to be done once more.
Once the project has been planned, it must go through an Environmental Assessment. Projects can be exempted from this process through Categorical Exemption if there is no significant impact upon the environment or community, and with approval from the FHWA and other acting organizations. If there is some significant impact or the impact is unknown, the Environmental Assessment is continued. This can go one of two ways: there could be no significant impact, in which the proper documentation is filed, and the project is continued; or there is a significant impact. At this point, an EIS is filed – an Environmental Impact Statement. This statement requires that further research is done to determine the extent of the impact done to the environment if the project was continued as is. It also includes alternatives and solutions for the project that could be taken in order to reduce the impact. After this, there is a period that the draft is open for public comment, which is available for 45 days at a minimum. After that period, the final draft is published, and the project must wait another 30 days before the final decision is made. It is important to note here that NEPA does not require actual action, just that the project is aware of its impact and that the public has been notified about it.

Controversies surrounding NEPA have become more and more common, as NEPA has slowed projects considerably. There have been several arguments that it is contributing to the US’s crumbling infrastructure as it complicates redoing massive structures. President Trump is interested in streamlining this process and cutting the average 5 year permit wait-time down to 2 years, although there are arguments that his plan undercuts NEPA’s power.
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