Thanks to action of an RRFB vendor, the Rapid Rectangular Flashing Beacon is back.  According to Aaron Lockwood of Carmanah Technologies Corp, Carmanah recently bought out the company that held the patent on part of the RRFB features and released the patents.  FHWA has reinstated the Interim Approval status at the federal level.  Mr. Lockwood is under the impression California has already obtained the blanket approval status that it held before for these devices.   I am hoping to obtain confi...
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