Speedsters will be encouraged to slap a sticker on or around their speedometer to serve as a "subliminal" reminder against building up demerit points.
Police in the Western Bay of Plenty hoped the initiative would reduce the number of injuries and deaths speeding drivers caused.
Police officers could now use their mobile phones to check the demerit status of drivers pulled over or travelling through routine checkpoints.
Those accumulating points would be encouraged to display a sticker but other drivers could also request one.
The sticker was designed to fit in the empty space of an RPM counter or speedometer. Police said these locations let the stickers be seen without causing distractions or restricting visibility.