Rules which govern critical matters of workplace relations and conduct on the sites of federally funded construction projects are being used as a ‘Trojan Horse’ to attack the rights of workers who do not form part of the building sector, a key union in Australia’s manufacturing industry has warned.

Australian Workers Union national secretary Scott McDine has accused heavy equipment supplier WesTrac and building industry workplace relations regulator Fair Work Building and Construction of misusing critical provisions contained within the Building Code 2013 to strip workers of conditions from its existing enterprise agreements with staff who did not operate…