Effective January 18, 2009 Prime/General contractors and subcontractors who perform work on federally funded construction projects are no longer required to display the home address and social security numbers of employees on the certified payroll report form WH-347 that they submit; instead you are now required to display the employees full name and the last 4-digits of his/her social security number as follows XXX-XX-1234. This revision was established to better protect worker privacy and the possibility of identity theft.