Ulster employers are being urged to take firm action to ensure their staff is safe on the roads.
The call follows a shock survey which suggests that half the people in the province who drive as part of their work feel pressured by employers into breaking speed limits.
The 36% who said they often or sometimes speeded was the highest level in the UK.
Northern Ireland had the lowest level of road rage, with 14% of drivers saying they often lost their temper with other motorists.
Bosses in the province came out bottom of the heap in the study by the Institute of Advanced Motorists (IAM) when it came to giving training or information about the risks their employees face on the road - provided by just 7% of employers.
The survey, carried out across the UK, showed that Northern Ireland employers were also worst at requiring eyesight or medical tests on those who got behind the wheel on their behalf.
A huge 86% of those surveyed said they had never been offered either.
Over 90% said they had never been briefed at work on work-related road safety, and 93% said they had never been given risk assessment training and a similar number said they were not required to take a break from driving while on medication.
Almost 80% said they had not been given training on basic vehicle safety checks.
The study showed that 36% of employers did not check on the validity of employees’ driving licences, 64% didn’t bother to check if a driver using their own car was insured for business and not one asked if there was a valid MOT on the vehicle.
Stephen Melville, from the NI Road Safety Council, expressed concern over the figures.
"We are dealing with the management of occupational road risk.
“We would recommend that businesses look into this more seriously and that it should become a legislatory issue with the Health and Safety Executive here.”
Mr Melville said that many employers were taking steps to better safeguard their employees, but others were not.
Councilor Tim Attwood, who is a member of Belfast City Council road safety committee, is also worried.
"Anyone who breaks the speed limit is putting themselves and others at risk. There is an onus on all employers not to put pressure on people to get from A to B.
"Employers should be encouraging staff to take advance driving courses.
“The car is a lethal weapon. We all have to take a reality check about how we use the roads and avoid putting people under pressure.”
IAM chief executive Christopher Bullock said: "We are shocked by the scale of these findings. Too many employers think their responsibility for employees when they’re at work ends at the front door or factory gate.
"Employers who fail to look after staff that is out on the road risk accidents that can result in employees being killed.
“Quite apart from being irresponsible, it is bad for their business.”
The survey involved 1,000 UK motorists who drive in the course of their work.