TEN per cent of trucks inspected by NSW authorities this year were illegally geared to allow rogue drivers to travel up to 150kmh on our national highways.

Police say for too long the transport industry's cowboy element has pushed the limits, but now are being forced off the road for the safety of every other motorist.

In the latest heavy vehicle crackdown, a Bowraville truckie was this week among the drivers charged.

It Is alleged he tried to fly under the radar by intentionally avoiding heavy vehicle checking stations, primarily because his company had tampered with its truck's speed limiters.

Police say in three truck operations this year, 484 trucks have been checked and 48 were identified as having evidence of speed tampering.

In CCTV footage released by police a B-double is seen to merge across traffic lanes at "concerning speed" as it approaches the entrance to a heavy vehicle checking station.

The vision then cuts to a B-double tailgating dangerously close to a smaller truck as its passes a second checking station.

Released by police after this week's latest heavy vehicle crackdown, it is the evidence that will be presented against a Bowraville truckie when he faces court.

Police allege the footage shows the 40-year-old endangering others on the road to avoid checking stations at 12 Mile Creek and Mount White on Wednesday.

Intercepted by police on the F3 near Brooklyn at noon, the driver was directed to the Wetherill Park Checking Station where the B-double was examined and declared defective.

The local truckie is then seen to swear at police media cameras, as Roads and Maritime Service inspectors comb the undercarriage.

Police issued him with court appearance notices for driving in a dangerous manner, two counts of negligent driving, two counts of travelling too close to another vehicle and two work-diary offences.

He is due to appear in Fairfield Local Court on April 18.

The Victorian company the man drives for is also in deep strife after it and another interstate trucking company were audited this week.

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