In the head impact zone outside the limits prescribed in paragraphs 5.7.1.2.1 to 5.7.1.2.2, inclusive, the seat frame structure shall be padded to avoid direct contact of the head with it: and, in these zones, shall have a radius of curvature of at least 5 mm. These parts may satisfy the energy dissipation requirements specified in Annex IV to this Regulation.
Peaga kokkupõrke tsoonis, mis jääb punktides 5.7.1.2.1–5.7.1.2.2 (k.a) ettenähtud piiridest välja, peab peaga otsese kokkupuute vältimiseks olema istme raam polsterdatud ja nendes tsoonides peab sellel olema vähemalt 5 mm kumerusraadius.