In 1985 he was appointed Chairman of the Coalition Task Force on Drugs. From 1987 he held the following Shadow Portfolios. Sport, Tourism and Youth Affairs, Transport and Transport and Waterfront Reform. He was Deputy Leader of the House from 1991 to 1993. In 1996 he became Minister for Transport and Regional Development when the Coalition government under John Howard took office after the 1996 federal election. In the first ten days of Office Sharp re-opened the East West Runway at Sydney's Kingsford Smith Airport,, which had been closed by the previous Keating Government. He then reformed the flight paths for KSA under a noise-sharing policy that resolved the issue of aircraft noise complaints, that had led to the creation of the No Aircraft Noise Party, who had run candidates in Sydney electorates in the 1996 Federal election. Sharp was responsible for the privatisation of Australia's capital city airports,, raising more than $12 billion. He privatised the Commonwealth owned Australian National Rail, in 1997. In 1996 he started the privatisation of the National Rail Corporation,, a Commonwealth, Victorian and NSW government owned rail operator. In 1997 he created the Australian Rail Track Corporation, to overcome the historic and different rail regulatory and access regimes imposed by State Governments. Sharp reformed the Australian National Shipping Line, which was then privatised. In 1996 he initiated a complete rewrite of the Civil Aviation Safety Authorities regulations. During 1996 and 1997 in conjunction with Peter Reith, Minister for Industrial Relations, he was tasked to develop a plan to reform Australia's Waterfront. This resulted in significant reforms that modernised stevedoring and improved the efficiency and reliability of Australia's waterfront. Sharp initiated a National Drivers License Scheme, linking all Australian drivers licenses in each State. In 1996 Sharp created the Roads of National Importance program enabling the Commonwealth to fund the upgrade of roads that were not part of the National Highway System, such as the Kidman Way and the Pacific Highway.
Controversy
Sharp resigned from the ministry on 24 September 1997 after becoming involved in the parliamentary travel allowances affair. The "Travel Rorts Affair" - which also claimed the ministerial careers of Peter McGauran and David Jull - unfolded when an audit of parliamentary expense claims revealed that a number of MPs had inadvertently submitted incorrect travel claims. He retired from Parliament on 31 August 1998, prior to the 1998 election.
Later career
After retiring from politics, Sharp worked for the Linfox Group. He also founded a transport consultancy company, Thenford Consulting. In 2000 he helped establish European Aeronautic Defence and Space, in Australia. This company later became known as the Airbus Group. He became a director of Eurocopter International Pacific, a director of Australian Aerospace and then a director of Airbus Group Australia Pacific, from which he retired in 2015. In 2005 Sharp became deputy chairman of Regional Express Airlines. Later he became Chairman of Pel Air. Sharp was Chairman of Parsons Brinkerhoff Advisory Board for a period of six years retiring in 2010. He was also Chairman of the Aviation Safety Foundation of Australasia, later renamed Flight Safety International for seven years from 2003 to 2010. He was the first Australian awarded a Presidential Citation for Aviation Safety. in 2005 he became a director of Skytraders, a specialist aviation company, retiring as a director in 2013. From 2004 to 2015 he was Chairman of Power and Data Corporation. In 2000 Sharp became the Honorary Federal Treasurer of the National Party of Australia. In 2009 at the Federal Nationals Annual Conference he was presented with the Earle Page Award, the Party's highest honour. He continues in that role. From 2002 to 2009 Sharp was a director and then Chairman of the Winifred West Schools Foundation. He was appointed as director of the Tudor House Foundation in 2009 to the present. Sharp was Co-Convenor of the Southern Highlands Cancer Council from 2005 to 2009. He established, with Michele Scamps, the Relay for Life in the Southern Highlands of NSW and was Co-Convenor for two of the relays. He is Patron of the JB Sharp Cup Regatta Series, which was founded by his great-grandfather in 1924. The Series conducts rowing regattas during the winter months in Sydney. It is open to all rowers and has been the breeding ground of many famous Australian oarsmen. Sharp was elected a director of the France-Australia Chamber of Commerce and Industry, from 2004 to 2009. In 2015 Sharp was appointed to the Climate Change Authority. In 2016 he was appointed to the Northern Australia Transport Study. Sharp is a fixed-wing and rotary-wing pilot. In 2014 it was revealed in the ABC programme A Country Road: The Nationals that sometime before the 1998 Federal election, Sharp had met with then National Party leader Tim Fischer and his deputy John Anderson for a luncheon and were surprised to learn from each other that they all intended to retire at the forthcoming election. They did not think it was a good idea for all of them to retire at the same time as it did not give a positive image to the party, which is battling against perceptions that it does not have a certain future. In the end, only Sharp retired, with Fischer and Anderson delaying their own retirements by successfully recontesting the election.
