6.5.4. The requirements of paragraph 6.5.2 shall not apply to parts of the bumper or parts mounted on or inset in the bumper which project less than 5 mm. The edges of devices projecting less than 5 mm shall be blunted. With respect to devices mounted on the bumpers and referred to in other paragraphs of this Regulation, the particular requirements contained in this Regulation shall remain applicable. a0c0