The Coast Guard has published inspection guidelines for integrated tug-barge combinations.

Titled "Navigation and Vessel Inspection Circular No. 2-81, Coast Guard Inspection Guidance Regarding Integrated Tug Barge Combinations," dated February 25, 1981, the guidelines are intended to provide uniform guidance concerning the application of statutes and Coast Guard regulations to tug-barge combinations that use specially designed connection systems.

Free copies may be obtained by requesting NVC 2-81. Write: Commandant (G-MP-4/14), U.S. Coast Guard, Washington, D.C. 20593.