General Guidance
WSDOT Environmental Procedures Manual (EPM)
The WSDOT Environmental Procedures Manual (EPM) defines the procedures WSDOT will use to ensure compliance with all applicable environmental laws and regulations throughout the WSDOT Transportation Decision-Making Process, which includes Transportation Planning, Project Scoping and Programming, Design and Environmental Review, Environmental Permitting and PS&E (Plans, Specifications, and Estimates), Construction, Maintenance and Operations, and Property Management. The manual is generally updated and published on the webpage accessed above on an annual basis, and any errata or addenda prepared between updates will be posted here:
Interagency Agreements and Environmental Executive Orders
These documents can be found in Appendix A of the Environmental Procedures Manual.
Environmental Directives
The following directives issued by the Governor deal with environmental matters:
The following directives issued by the Secretary of Transportation deal with environmental matters:
- D 22-22 - Noise Evaluation Procedures for Existing State Highways
- D 27-09 - Public Notice U.S. Army Corps of Engineers/U.S. Coast Guard
- P 2038 - Wetland Protection and Preservation (supersedes D 31-12)
Environmental Instructional Letters
Occasionally WSDOT Executives will issue what is known as an "Instructional Letter" to accomplish a particular purpose within a specified period of time. Usually, such letters will have both an effective date and an expiration date that will allow enough time for a prescribed procedure to be incorporated into an appropriate WSDOT manual.
Environmental Compliance Assurance Procedure (ECAP)
WSDOT has an Environmental Compliance Assurance Procedure (ECAP) to identify and eliminate potential environmental violations during project construction. It is also used to ensure prompt notification of WSDOT management and agencies.
Environmental Permit Guidance