Marine and Safety Tasmania has advised that boat owners take care over the Easter break.
MAST chief executive Lia Morris said the 'Be Boatwise; There are No Second Chances' campaign as being particularly important given recent boat-related incidents.
"Easter is one of the busiest boating periods for Tasmanians," Ms Morris said.
She noted the importance of life jacket maintenance, weather awareness, having the correct safety gear and making sure a purchased vessel is seaworthy.
"Since 2001, Tasmania has held legislation for the compulsory wearing of life jackets in boats under six metres and under 92 per cent of Tasmania's registered boats are trailerable, the vast majority are under this length," Ms Morris said.
"There is a good compliance rate for wearing life jackets but we know that of the 75,000 to 85,000 inflatable life jackets in Tasmania, less than 3 per cent are serviced in accordance with the manufacturer's instruction.
"Tragically, recent fatalities in Tasmania have seen people die wearing inflatable life jackets that did not work as expected."
According to Ms Morris, one in 17 Tasmanians own a registered boat with one in eight holding a recreational boat license.