Where an EEC pattern approval (whether granted under these Regulations or by any member state other than the United Kingdom) is in force in respect of any pattern of instrument, the manufacturer shall cause the sign of EEC pattern approval, or where the pattern approval is a limited pattern approval, the sign of EEC limited pattern approval, to be affixed to instruments conforming to the approved pattern.

Any sign affixed in accordance with this Regulation shall be affixed at a visible point inside the instrument and must be legible and indelible.