Government Auditing Standards (Yellow Book 2018) Quality Standards for Digital Forensics (Current 2019) Quality Standards for Digital Forensics – Appendix (2019) Quality Standards for Investigations (2011) Quality Standards for Inspection and Evaluation (Blue Book - 2012) Quality Standards for Inspection and Evaluation (Blue Book - 2020) Quality Standards for Federal Offices of Inspector General (Silver Book - 2012) Quality Standards for Digital Forensics (Former Version - 2012)