1. CFR §650. (2015). "National Bridge Inspection Standards." Code of Federal Regulations Title 23 Chapter I Subchapter G Part 650 Subpart C.
2. Anderson Stephen. (2001). 2001 Annual PSM Symposium - Risk Based Inspection Case Studies. Aptech Engineering Houston TX.
3. ASDSO (Association of State Dam Safety Officials). (2000). Summary of State Laws and Regulations on Dam Safety. ASDSO Lexington KY.
4. API (American Petroleum Institute). (2009). Risk-Based Inspection API Recommended Practice 580 Second Edition. API Washington DC.
5. Ayyub Bilal M. (2003). Risk Analysis in Engineering and Economics Chapman & Hall/CRC Boca Raton FL.