Aircraft equipped with ADS-B Out capabilities will no longer be required to specifically apply for approval to operate in Reduced Vertical Separation Minima (RVSM) airspace, according to a newly proposed FAA regulation. Under existing regulations, to fly an aircraft between FL290 and FL410, the aircraft must be RVSM certified, either by the manufacturer or by subsequent application.
Source: avwebADS-B Out to Ease RVSM Compliance