Career
He was appointed Secretary of State for Rural Development in the second Cabinet of Viktor Orbán on June 2, 2010. Czerván ran in the parliamentary elections of 1990 as a candidate of the Agrarian Alliance. He was elected local representative in the October 1990 local elections, and was appointed Deputy Mayor of Tápiószentmárton.
He retained his positions in local government until 2002.
In the parliamentary elections of May 1994 he was again unsuccessful. In the 1998 general elections he secured a seat as Member of Parliament for Nagykáta (Constituency 6, Pest County).
He was on the Agricultural Committee. He managed to keep his seat in the parliamentary elections on 21 April 2002 as an individual candidate, and continued his legislative work in the Agricultural Committee.
On 20 October 2002 he was elected to the body of representatives of Tápiószentmárton for the fourth time.
Since the transformation in 2003-2004 he has been chairman of Fidesz-Hungarian Civic Alliance in the Nagykáta constituency. He secured a seat in Parliament in the 2006 and 2010 general elections from Pest County 6th constituency.