Unit II and X - PSAC Unit III - Union of National Employees Unit IV - Union of Health and Environment Workers Unit V - Union of Taxation Employees Unit VI - Union of Postal Communications Employees Unit VIII - Government Services Union Unit IX - PSAC Holdings Unit XI - Union of Canadian Transportation Employees Unit XIII - Union of Veterans’ Affairs Employees Unit XIV - Union of National Defense Employees Unit XV - Customs Immigration Union Unit XVIII - Union of National Defense Employees Unit XIX - Agriculture Union Unit XX - Union of Safety and Justice Employees Unit XXI - Union of Canadian Transportation Employees