Article 29 7.

special purpose vehicles as defined in Article 3, point (31), of Regulation (EU) 2018/858;

parts of a vehicle, other than the base vehicle, that have been type-approved in multi-stage type approval of category N1, N2, N3, M2 or M3;

vehicles produced in small series, as defined in Article 3, point (30), of Regulation (EU) 2018/858.