Parking lamps are covered by ECE Regulation 77. This applies whether an individual lamp, part of a headlamp or multi-functional lamp (such as rear cluster light). Where a pair of parking lamps are fitted, should one fail the other must be able to maintain the minimum light intensity as required.
There are strict regulations covering the directional and angle of visibility of parking lamps, and the maximum amount of light in those specifications.
Please note that aggregated ‘E’ marks may be displayed in tabular format with either multiple categories of this regulation, or alongside other regulations. For modules that are approved, for use when fitted within other lamps, see Model B.