1. Association of American Railroads. (2013). "Moving Crude Oil by Rail." AAR Online. (December 2013).
2. American Railcar Industries (2013). "Tank Car Specifications." ARI Online (November 2013).
3. BNSF Railway. (2011). "Design Guidelines for Industrial Track Projects". (November 2013).
4. Union Pacific Railroad. (2013). "Technical Specifications for Construction of Industrial Tracks". (November 2013)
5. CN Railway. (2011). "Engineering Specifications for Industrial Tracks". (November 2013).