@exus1pl @lehtimaeki both.#EU-wide type certification for lights and reflectors."blinking / flashing and espechally "brake-checking" someone is considered "coercion in traffic" which is a felony that gets driving licenses suspended indefinitely. (#NotLegalAdvice!)EU- & German #spectrum compliance for any RF emissions, espechally radar. There is a #CEPT-wide ultrawideband-radar standard used for distance warning sensors on cars).
