The 2023 Standard Specification book is mandatory for use on projects advertised on or after October 1, 2023. Non-CDOT employees will have to print and assemble this Specification book.
Construction Specifications
The 2022 Standard Specification book was mandatory for use on projects advertised on or after October 1, 2022 until September 30, 2023. Non-CDOT employees will have to print and assemble this Specification book.
The 2021 Standard Specification book was mandatory for use on projects advertised on or after October 1, 2021 until September 30, 2022.
The 2019 Standard Specification book was mandatory for use on projects advertised until September 30, 2021.
