A Deer Park mother has finally fulfilled her fight for tougher boating safety laws.

Gov. Andrew Cuomo signed a law that requires anyone who operates a power boat to complete an online safety course.

Brianna's Law is named after a Long Island girl who was killed in a boating accident in the Great South Bay nearly 20 years ago. Her family's boat was slammed into by another vehicle.

Brianna Lieneck's mother, Gina Lieneck, has been fighting for tougher boating safety laws since her daughter's death.

"I made a promise to my daughter that I will see this through and not watch another family go through the tragedy that we went through," Lieneck said.

Anyone who operates a power boat without completing the safety course will be fined.