Piccoli has represented Murrumbidgee for the Nationals since the 1999 state election. In 2008 he became the deputy leader of the National Party in the NSW Parliament. He was included in the Shadow Ministry of the O'Farrell/Stoner Liberal/Nationals Coalition. Following the Coalition victory in the 2011 New South Wales election, Piccoli was chosen by PremierBarry O'Farrell and Nationals Deputy Premier Andrew Stoner to be part of their cabinet as the Minister for Education. When Deputy Premier and Nationals leader Andrew Stoner announced his resignation in 2014, Piccoli as Stoner's deputy was expected to stand as a candidate to succeed him as Nationals leader but chose not to nominate for the leadership and instead remained deputy to new leader Troy Grant. It is believed that Piccoli did not have the numbers to beat Grant for the leadership, despite Grant's political inexperience. Stoner had endorsed Grant over Piccoli as his successor. In 2016 Grant resigned as Deputy Premier and Nationals leader but Piccoli again did not stand for the leadership and instead stood down as deputy leader. Piccoli has promoted an educational reform called "Local Schools, Local Decisions" to give state schools more authority. Following a January 2017 reshuffle of the Berejiklian ministry, Piccoli was not appointed to the new ministry and issued a statement that he had ruled out resigning from politics before the next election.
Ethics classes
Ethics classes were introduced by the KeneallyLabor government as an alternative for children who did not want to attend traditional scripture classes. Prior to the 2011 state election, Barry O'Farrell made a pre-election pledge of not scrapping the ethics classes. Following the election, Fred Nile, who was vehemently opposed to the ethics classes, introduced a private members bill proposing the abolition of the classes, arguing that the ethics course is based on a philosophy linked to Nazism and communism. Mike Baird's coalition government won the 2015 state election, promising to lease parts of the electricity grid to private operators, while Fred Nile held the balance of power in the upper house. While negotiating the lease of the electricity grid, Mike Baird announced changes to scripture enrolment forms, with the availability of ethics classes removed from forms sent to parents. The existence of ethics classes would only be made known to parents in a secondary form if they had chosen no scripture classes. The form would also remove the "no" box that allows parents to opt out of scripture classes for their children, making them tick no box. The changes were described as 'misleading and deceptive' by Anglican minister John Dickson. Adrian Piccoli's department blocked access to the chairman of Primary Ethics, despite holding meetings with faith-based lobby groups. The government made the enrolment process more complex in 2016, requiring parents to fill in multiple forms before being made aware that ethics classes are an option.