More than 550 people have signed a petition calling to make it a legal requirement to report hitting a cat with a car.
Currently, drivers in Guernsey only have to report hitting dogs, horses, cows, asses, mules, sheep, pigs or goats.
Nichola Lloyd, who lost two cats after being hit by cars, said it was "completely bonkers" that collisions with cats did not need to be reported.
Jersey became the first place in the British Isles to make it law to report a collision with a cat, carrying a fine of £10,000.
'I still miss him'
Mrs Lloyd lost her cat Freddie in 2024 after he was hit by a vehicle outside her home.
"It was awful, we'd only had Freddie around a year. We'd just got married about two weeks before and we were settling into a new house.
"I wasn't lucky enough to have children so my cats are my children, it was like losing a member of the family. I still really miss him."
Mrs Lloyd has joined in the calls to update the law to make reporting a collision with a cat a legal responsibility.
"I was looking up and a cat doesn't come under the definition of an animal under the Road Traffic [Ordinance]," she said.
"You've got to stop for a lot of things, I appreciate that cats being cats are possibly more likely to be run over than other animals, but that doesn't make them any less an animal."
