There is a need for developing improved practices for Quality Control (QC) and Quality Assurance (QA) within the context of the requirements of the National Bridge Inspection Standards (NBIS) to improve the safety of highway bridges, improve the quality and reliability of bridge inspection practices, and to enable progressive approaches for administering an inspection program. There is limited experience within state DOTs regarding effective practices for implementing the wide variety of possible methods for QC/QA. A guideline document that can be used by a State Department of Transportation for implementing QC/QA practices within their bridge inspection programs is needed. Because of the variety of methods for implementing the NBIS requirement, the guideline must be designed to enable states to select methodologies most appropriate for their particular practice. This project will develop methods for implementing advanced QC/QA procedures within existing bridge inspection programs.