From October 15, NSW motorists will no longer need to notify police if they're involved in a collision, unless someone is injured, thought to be drunk or drugged, or drivers don't exchange details.

Currently they go to a crash and investigate where a vehicle involved needs to be towed from the scene.

NSW Police Traffic and Highway Patrol commander John Hartley said the new process was about cutting back red tape and freeing up police resources for other road safety initiatives.

"We will see an improvement in safety as motorists move off the roadway limiting their exposure to traffic and secondary impacts, while we expect to see a positive flow-on effect in reduced traffic delays."

The changes across the border will bring also bring the state's crash reporting requirements closer in line with those already in place in the territory.

ACT Policing will go to a collision if someone is seriously injured or killed, if there is a threat to someone's safety, or alcohol or drugs are thought to be a factor in the crash.

They will also attend if the the vehicles are blocking the road or disrupting traffic.

If the vehicles involved in the smash require a tow, but are not blocking the roadway, motorists can arrange their own tows.

An ACT Policing spokesman said one of the only differences between the two jurisdictions would be that territory police officers could arrange for a vehicle to be towed if the driver was unable to.

Motorists involved in a collision in the ACT need to exchange details and report the collision within 24 hours online at the Canberra Connect website.

NSW Police will also no longer issue event numbers for crashes where no vehicle is towed.

Drivers involved in crashes in NSW where their vehicle needs to be towed can organise their own tow and later report the crash to the Police Assistance Line on 131 444.