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UN Regulations
olour that can be emitted.-Special warning lights in the T, HT and X categories can only be approved in one of three colours: blue, yellow or red, and simultaneous lighting of multiple colours is prohibited. -Amendments of provision, "It shall not possible for a user to activate a group of multiple flashes (flash patterns) that does not comply with this Regulation."-Change of the example for approval marking and wording to clarify the requirement...
Regulations Updated at: 2026/03/27



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