It is the RHBL's policy that all Coaches and Managers are required to complete a Working With Children Check.
Go to http://www.kidsguardian.nsw.gov.au/working-with-children/working-with-children-check
As a non-paid volunteer the cost is zero, but you do need to visit a a NSW Motor Registry, RMS Agency, or Service NSW office (not your local Council) to show proof of identity.
The NSW Working With Children Check allows parents to volunteer in activities that involve their own children without needing a Check.
The exemption that applies to parent volunteers in sporting teams is: