Hon Phil Twyford is the Minister of Transport. Key functions of the Minister of Transport include improving performance of the transport system and administering several pieces of legislation that relate to land, air and sea transport (e.g. Land Transport Act 1998)
In August 2011, the Land Transport (Road Safety and Other Matters) Amendment Act 2011 was implemented. This amendment lowered the youth (under 20 years) drink drive limit (from a blood alcohol concentration (BAC) of 0.03 (30 milligrams of alcohol per 100 millilitres of blood or 150 micrograms of alcohol per litre of breath) to a BAC of zero.
On the 1st of December 2014, the Land Transport Amendment Act (no 2) 2014 lowered the alcohol limit for drivers aged 20 years and over, from 80mg of alcohol per 100ml of blood (0.08) to 50mg (0.05), and from 400mcg of alcohol per litre of breath to 250mcg.
On July 1, 2018, alcohol interlock devices became mandatory in sentencing for serious driving offences involving alcohol.