UNAVCO, a non-profit university-governed consortium, facilitates geoscience research and education using geodesy. Geodesy is the study of Earth's shape, gravity field, and rotation. Geodetic research defines the terrestrial reference frame; and quantifies changes in the properties of Earth’s surface and subsurface, ice sheets and glaciers, and oceans and atmosphere. Geodesy's broader benefits include help with preparedness and mitigation of hazards; and foundational support for space-based operations, navigation, communications, surveying, resource management, and national security. Boulder, Colorado

Below is an amalgamation of the International Regulations for Preventing Collisions at Sea (72 COLREGS) and the U.S. Inland Navigation Rules, their Annexes, and associated Federal regulations. This amalgamated version of the Rules follows, and, provides a more printer friendly method to access the information found in the U.S. Coast Guard Rules and Regulations Handbook Below is an amalgamation of the International Regulations for Preventing Collisions at Sea (72 COLREGS) and the U.S. Inland Navigation Rules, their Annexes, and associated Federal regulations. This amalgamated version of the Rules follows, and, provides a more printer friendly method to access the information found in the U.S. Coast Guard Rules and Regulations Handbook.