Spanish firm Foro Homologar advises that homologation of a converted camper must begin before components are installed, not at the ITV inspection stage. According to ASEICAR, 356 new motorhomes and campers were registered in Spain in August 2026, up 14.1% year-on-year, while the second-hand market rose 16.2% to 1,818 transactions. Missing component documentation, discrepancies between installed and documented work, and late certificate requests can force modifications and repeat ITV visits. A second correction to the seventh revision of the Vehicle Modification Manual took effect on 6 February 2026.