T219 or TW02.9 Temporary Warning Signals Changed Road Signs, referred to as a W2-1.9 Sign in the TCD Rule, is a supplementary plate, used at intersections where the traffic signal control sequence had changed. The sign should remain in place for at least two weeks following the changes. The TW-2.9 Signals Changed Traffic Sign is used underneath a T2 TW-2 Other Hazard Sign and available for Level One or Level 2/3 New Zealand Roads for Temporary Traffic Management (TTM) and is in the Waka Kotahi Code of Practice (CoPTTM).