Premier Mike Baird has rejected a push by the NSW corruption watchdog for more transparency and safeguards around who is lobbying his government after his department advised it would cost too much.

Upon becoming Premier last year, Mr Baird announced that excerpts of ministerial diaries would be published on a quarterly basis.

Premier Mike Baird has rejected a push by ICAC for more transparency around government lobbyists. Credit:Louise Kennerley

It followed Barry O'Farrell's resignation as Premier after he gave misleading evidence to the Independent Commission Against Corruption over the gift of a $3000 bottle of wine from Liberal fundraiser Nick Di Girolamo, who had been lobbying his government.

A 12-month review of the rules for publication of ministerial diaries by the Department of Premier and Cabinet (DPC) notes ICAC praised the reform and other new lobbyist rules introduced by Mr Baird as "pragmatic, streamlined, easy to follow and understand, and emphasise integrity and honesty".