<P> Under the Ontario Heritage Act, activities on registered archeological sites require a license . In March 2005, the Whitefish Point Preservation Society accused the Great Lakes Shipwreck Historical Society (GLSHS) of conducting an unauthorized dive to Fitzgerald . Although the director of the GLSHS admitted to conducting a sonar scan of the wreck in 2002, he denied such a survey required a license at the time it was carried out . </P> <P> An April 2005 amendment to the Ontario Heritage Act allowed the Ontario government to impose a license requirement on dives, the operation of submersibles, side scan sonars or underwater cameras within a designated radius around protected sites . Conducting any of those activities without a license would result in fine of up to CAD $1 million . On the basis of the amended law, to protect wreck sites considered "watery graves", the Ontario government issued updated regulations in January 2006, including an area with a 500 - meter (1,640 ft) radius around Fitzgerald and other specifically designated marine archeological sites . In 2009, a further amendment to the Ontario Heritage Act imposed licensing requirements on any type of surveying device . </P> <P> Extreme weather and sea conditions play a role in all of the published theories regarding Fitzgerald's sinking, but they differ on the other causal factors . </P> <P> In 2005 NOAA and the NWS ran a computer simulation, including weather and wave conditions, covering the period from November 9, 1975, until the early morning of November 11 . Analysis of the simulation showed that two separate areas of high wind appeared over Lake Superior at 4: 00 p.m. on November 10 . One had speeds in excess of 43 knots (80 km / h; 49 mph) and the other winds in excess of 40 knots (74 km / h; 46 mph). The southeastern part of the lake, the direction in which Fitzgerald was heading, had the highest winds . Average wave heights increased to near 19 feet (5.8 m) by 7: 00 p.m., November 10, and winds exceeded 50 mph (43 kn; 80 km / h) over most of southeastern Lake Superior . </P>

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