Drivers have been praised for their "patience, caution and courtesy" in making the transition to the new give-way rules a smooth one during the past three months.
Associate Transport Minister Simon Bridges says no serious crashes have been attributed to the rule changes since they were introduced on March 25.
"The naysayers who predicted widespread chaos and confusion have well and truly been proven wrong," he said.
Under the changes, which relate to uncontrolled intersections, right-turning traffic now yields to oncoming left-turning traffic, while at T-intersections the car coming from the left has right-of-way.
Mr Bridges said it would take some time before the new rules became second nature and drivers should remain vigilant at intersections.
Meanwhile, car review website dogandlemon.com is claiming credit for helping to prevent chaos on the roads by highlighting the "woeful" publicity campaign in the lead-up to the switch.
"By raising the level of public concern, we did the government's job," editor Clive Matthew-Wilson said.
"We got people worried about the changes to the give-way rules, and worried people are safer drivers."
NZN