Road-safety advocates have applauded the Government's decision to greatly lower the adult drink-driving limits and say the move will save lives.
Parliament voted on Wednesday night to reduce the breath alcohol limit from 400 micrograms per litre of breath to 250mcgs, and the blood alcohol limit from 80 milligrams of alcohol per 100 millilitres of blood to 50mg from December 1.
The legislation also creates a new offence resulting in infringement penalties of $200 and 50 demerit points for returning breath alcohol readings between 251-400mcgs.
For drivers who refuse or fail to undergo an evidential breath test, the infringement fee will rise to $700 and incur the same demerit points.
Transport Minister Gerry Brownlee said lowering the alcohol limits sent a clear deterrent message and would help save more lives and reduce injuries.