For years, state departments of transportation (DOTs) were solely responsible for quality control (QC) and performed testing and inspection to verify construction quality. However, since the 1970s, many state DOTs have transferred the responsibility for QC processes of their highway-construction projects to contractors.
The TRB National Cooperative Highway Research Program's NCHRP Synthesis 590: Agency Use of Quality Control Plans for Administering Quality Assurance Specifications identifies and documents the various QC requirements used by state DOTs.
National Academies of Sciences, Engineering, and Medicine. 2022. Agency Use of Quality Control Plans for Administering Quality Assurance Specifications. Washington, DC: The National Academies Press. https://doi.org/10.17226/26664.
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