- ADOT
- FHWA Operating Agreement ~ Expediting Categorical Exclusion
Groups One and Two Projects
This agreement, which is a 2012 update to the 2010 operating agreement, expedites the environmental clearance for projects with no or extremely low risk of causing environmental harm. - Guidance
for Categorical Exclusion Groups One and Two Projects
This guidance lists the type of projects and required documentation for Group One and Group Two projects that are processed as Categorical Exclusions.
- Council
of Environmental Quality Regulations
This document consists of regulations for implementing the National Environmental Policy Act (NEPA). Also included in this document is the actual NEPA legislation.
- Federal
Highway Administration NEPA Regulations
This document consists of regulations for implementing the NEPA legislation for projects funded by the Federal Highway Administration. - Federal
Highway Administration NEPA Guidance
This document provides guidance for the practitioner in preparing Categorical Exclusions, Environmental Assessments, and Environmental Impact Statements for highway projects funded by the Federal Highway Administration.
- Action
Plan for State Funded Projects
This document will guide the practitioner throughout the highway development process for State funded projects, which includes environmental documentation and public involvement. - Action
Plan for Federally Funded Projects
This document will guide the practitioner throughout the highway development process for Federally funded projects, which includes environmental documentation and public involvement.
- NEPA
Process Flowchart
This comprehensive flowchart illustrates the various steps in the environmental process from the beginning of a highway project to the final environmental clearance. It includes, among other disciplines, hazmat, air/noise, and archaeology.
- Adobe Reader
Documents are posted as they become available in PDF format, which requires Adobe Reader to view.

