On October 2, 2023 City of Nampa adopted the 2020 Idaho Standard for Public Works Construction (ISPWC) along with updated 2023 versions of the below City manuals.

A copy of the 2020 ISPWC can be purchased from the Local Highway Technical Assistance Council (LHTAC) website ( 

Previous versions of the City manuals can be obtained from Nampa Engineering Division upon request.