For a transitional period until 1 January 2014, certificates of conformity of base vehicles of category N₁ within the scope of Regulation (EC) No 715/2007 issued in accordance with Directive 2007/46/EC and Regulation (EC) No 692/2008 before the amendments introduced by this Regulation, shall continue to be valid.

For a transitional period until 1 January 2014, certificates of conformity of completed vehicles of category N₁ within scope of Regulation (EC) No 715/2007 issued in accordance with Directive 2007/46/EC and Regulation (EC) No 692/2008 before the amendments introduced by this Regulation, shall continue to be valid.

With effect from 1 January 2013, national authorities shall consider certificates of conformity complying with the requirements set out in this Regulation to be valid.