Farmers will no longer be stopped by police for using the northbound stretch of the AWPR.
NFU Scotland had raised concerns after a number of farmers reported their tractors had been stopped while using the Balmedie to Tipperty stretch of the new A90 Aberdeen to Fraserburgh road.
The overall bypass is defined as a special road, which controversially means tractors are barred from using the route.
However the stretch north of the city is classed as a trunk road, which means that farm traffic is allowed to travel along it.
Due to the confusion, officers had been stopping some farmers, and informing them they would not be able to use the route.
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Now Transport Scotland has confirmed the force has been made aware of the distinction between this stretch and the bypass.
North East region MSP Peter Chapman, who is a farmer, had been pushing for clarity from roads bosses and has welcomed the development.
He said: “When the road was first promoted there was some confusion as to who was getting to use the road, and what it would mean for tractors.
“It was disappointing to hear from NFUS and constituents that police were still stopping them.
“Clearly, both police and drivers are just trying to do their job. It’s an honest mistake.
“I hope this is now totally cleared up and no real harm has been done.”
There was uproar in the farming community when it became apparent that tractors would be unable to use the majority of the 28-mile route.
There is a special designation which limits the distance farm traffic can travel, effectively prohibiting agricultural vehicles from travelling on it.
Although this was agreed in the planning stages a number of years ago, many farmers were unaware they were not able to use the route.
The NFU argued that farmers had endured the brunt of disruption during construction and should benefit from the new road.
However Transport Scotland refused to be budged and the ban remains in place, outside of the A90 northbound stretch.
