The bill introduces a new section to chapter 43.21C of the Revised Code of Washington (RCW) that categorically exempts decisions related to the development or extension of trails or paths from compliance with the state environmental policy act (SEPA). This exemption applies if the surface area of the proposed trail or path does not exceed 10 acres and is located on a railroad right-of-way designated for interim trail use within a city with a population of 500,000 or more. Additionally, the bill mandates that notice of the proposed trail or path must be posted on the property for at least 30 days prior to final approval, and it outlines requirements for meaningful consultation with affected federally recognized tribes regarding potential impacts to cultural resources and tribal treaty rights.

Furthermore, the bill specifies that applicants must notify the affected tribes using at least two methods, including mail, and if no consultation is initiated within 90 days of notification, the exemption will take effect. The bill also clarifies that improvements related to the trails and paths, such as utilities and support infrastructure, are included in this exemption, while unrelated infrastructure improvements are not. This new section is intended to streamline the process for developing trails and paths while ensuring that tribal consultation and environmental considerations are addressed.