What's the story with DRLs, some have been around since 1995 ? There are many kinds: high beam, low beam, parking light, dedicated DRL, fog light, low power, mid power, high power, yellow, white, etc.--no standard. The NHTSA has allowed this confusion to exist for over 10 years. Also they evidently have insufficient data as to the effectiveness of DRL as they have never been mandated.
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