 According to an article in "The Business Journal" (Tampa Bay), keeping track of state laws and regulations is extremely important and new laws can cause expensive challenges for a livery operator.In 2004, it was estimated there were about 1,400 small rental, single-location operations in the United States.According to the 2007 United States Economic Census, 1,740 scenic and sightseeing water transportation categorized establishments reported total revenue of $1,270,714 U.S. dollars.