New AI speed cameras will start fining WA drivers from today with the eight-month grace period now over.
The high-tech cameras can detect people who do not use a seatbelt, use a mobile phone or speed.
During the caution period, six safety camera trailers and fixed cameras on the Kwinana Freeway detected more than 380,000 offences.
These included 26,800 people not wearing a seatbelt, close to 97,000 with a mobile phone in their hand and 100,000 speeding offences.
Over 65,000 caution notices were issued to drivers, giving them an opportunity to change their behaviour behind the wheel without penalties.

PIC: Road Safety Commission.
"After eight months of warnings, it's pleasing to see some drivers have changed their dangerous behaviours behind the wheel, shown by a decrease in detected offending, but for others, penalties are necessary to prompt change," Road Safety Minister Reece Whitby said.
"While enforcement starts today, education and awareness will not stop. Saving lives, ensuring our roads are safe and changing behaviour are our priorities.
"Every time you get behind the wheel, you make choices that could mean life or death, not just for you, but for someone's child, parent, partner or friend.
"You don't need a fine or a camera to tell you what's right. Slow down, wear your seatbelt properly, and leave the phone alone."
All safety camera infringements go directly to the Road Trauma Trust Account which funds projects and programs to reduce injuries and deaths on WA roads.

PIC: Road Safety Commission.
Fortnightly red bin collections to remain in the City of Rockingham after council rejects motion
Rate rises on the way for Rockingham, Mandurah ratepayers
Harvey Police call on witnesses to serious crash
Men allegedly under the influence of alcohol when boat crashed under Mandurah Estuary Bridge
Works underway on 26 new social homes in Kwinana
Kwinana Adventure Park splash pad to undergo $2 million upgrade
Mandurah Wildlife Rehabilitation Centre stops accepting seabirds due to bird flu risk
Mandurah Detectives recognised for dismantling organised crime network
Two dead in separate crashes in Oldbury and Byford