For a significant number of cases, accident data supplied by vessel operators are incomplete or inaccurate. Specifically, accident report forms filled out by vessel operators are biased in reporting the cause of the accident or lack critical information about pre-incident conditions, e.g., speed, relative position, weather, etc. The high rate of under, incomplete, and inaccurate reporting limits the quality and statistical reliability of the data analysis required under Title 46 of the United States Code. Casualty reports completed by trained investigators are used, if submitted to the Coast Guard, to fill in missing data, resolve conflicting information, and otherwise improve data accuracy. These investigation reports are the best source of quality accident data.
Many States also investigate nonfatal accidents.
The Coast Guard investigates casualties on the high seas beyond the territorial seas. When investigation methods are used in conjunction with a broad knowledge of how boats are designed, constructed, and operated, investigators are likely to identify the causes of vessel accidents and successfully implement ways to prevent their recurrence. The excellent safety record of commercial aviation can be largely attributed to the fact that professionals investigate all commercial aircraft accidents. Increasing the number of reported vessel accidents that are investigated would provide for meaningful data analysis that accurately represent and predict critical issues impacting recreational boating safety. Boating Statistics presents national statistics and trends on the frequency, types and causes, craft, persons, factors involved, and environmental conditions surrounding reported incidents.