While he was the Minister of Transport, Hon Steven Joyce received several requests to review the requirements of the Land Transport Rule: Vehicle Exhaust Emissions 2007 (the emissions Rule). In response to these requests the Ministry provided the Minister with a series of briefings on the issue.

In November 2011, the Ministry of Transport, under the Official Information Act 1982, released the full list of papers received by the Minister on this matter.

5 February 2009

5 June 2009

18 August 2009

1 October 2010

October 2010

10 June 2011

14 July 2011

22 July 2011

5 September 2011