Risk of Collision-A Sequel

Abstract

An international performance standard for Automatic Radar Plotting Aids (ARPA), frequently referred to as collision avoidance aids, has been approved. This paper briefly reviews the domestic and international actions that led to development of the ARPA standard. The main features of the international ARPA standard are examined and compared to the United States statutory requirements which require compliance with the Maritime Administration (MARAD) specification. The differences between the international standard and the MARAD specification are highlighted and the implications of these differences addressed. Domestic implementation of the ARPA standard requires Coast Guard rulemaking action. The background, applicability, and time frame for regulatory action is presented. The potential alternative rulemaking actions are touched on. The implementation of requirements for a major new system are not without potential problems. Some of these potential problems that have been raised in international fora, but have not been fully considered, include development of equipment reliability standards and determination of necessary training requirements. The author's thoughts on these issues are presented. The opinions or assertions contained herein are the private views of the writer and are not to be construed as official or reflecting the views of the Commandant or the Coast Guard at large.