Is 91.175 enforced in the USA?

91.179


"Sam Spade" wrote in message
...
| Jim Macklin wrote:
|
| In controlled airspace, the MEA or MVA [radar] is
| controlling unless you have a IAP.
|
| In Class G, you can fly under IFR in IMC w/o a
clearance,
| but you can't climb into or fly sideways into any
controlled
| airspace w/o first getting a clearance.
|
| Once a climb to level-off is completed under IFR in Class
G airspace
| then the aircraft must forever maintain the off-route
altitude
| requirements of 91.177 unless becoming VFR.