William Collum appeared on the Scottish FA List in January 2000. He was promoted to the Scottish Category 1 in may 2004 and received his FIFA badge in 2006. He moved up to the UEFA Elite Category in July 2012.
international
See his palmares
Champions League group stage since 2010, the 2011 u20 World Cup and the final of the Euro 2008 u19 between Germany and Italy (9 yellow and 2 red)
2016
William Collum has been been appointed to take charge of EURO 2016.