The majority of large fleets are leading the way in driver safety by implementing thorough policies and risk assessments.
A joint survey by Kwik-Fit Fleet and Roadsafe found that 86% of companies, together running more than 250,000 company cars, have competent policies in place.
Nearly three-quarters of these policies (79%) work to identify high-risk drivers and more than half (65%) implement on-road and in-house training.
All the companies surveyed claimed to conduct regular driving licence checks.
The majority of policies (64%) also have board-level support and were signed off by company directors.
Despite a recent Autoglass report, which claimed that 69% of fleet managers are ignorant of the Corporate Manslaughter Act, virtually all of the companies questioned were aware of the implications of the new act.
More than half of large fleet managers (55%) have introduced regular safety checks, such as tyre and fluid level checking.
The biggest factor in prompting at-work policies was ensuring driver safety, followed by financial considerations.
The survey also found that most fleet operators recognise the importance of grey fleet drivers, with 76% checking grey fleet documentation.
Mike Wise, head of Kwik-Fit Fleet, said: “The importance of managing occupational road risk has never been more in the spotlight.
"While many fleets are actively taking steps to reduce their crash risk exposure, there is no room for complacency.
“It is also important that those firms who have implemented best practice work to enlighten those who have yet to act.”