ATC
FAA says DRVSM will take effect on January 20 as scheduled
At precisely 0901 UTC on January 20, new operating rules for reduced vertical separation minimums (RVSM) are planned to take effect in the U.S., southern C

At precisely 0901 UTC on January 20, new operating rules for reduced vertical separation minimums (RVSM) are planned to take effect in the U.S., southern Canada, South America and Mexico. Depending on your particular situation, you may be anticipating or dreading the event.

For the operators of the more than 6,100 U.S.-registered business jets that have already been approved to fly in RVSM airspace there should be few problems. But operators of the remaining aircraft, as many as 3,800 of them, according to the latest figures from the FAA, could face rerouting or delays, all because they have not paid the price of entrance into the restricted airspace–namely avionics and pitot-system upgrades and, for U.S. operators, a letter of authorization from the FAA.