the operating space
It's a space not to be operated in
It means the vehicle is operating like it should.
If you are seated in the drivers seat of the vehicle in question AND - the key is in the ignition - or on your person - or within your reach - regardless of whether the vehicle's engine is running or not, you are considered to be "in control" of the vehicle and therefore "operating" it.
Of all the space around your vehicle, it is the area ahead of the vehicle - the space you are driving into - that is most important.
The five-year estimated cost of operating the vehicle
Legally drunk and subject to a DUI if operating a vehicle on the road. Operating a vehicle at 0.07 or lower can get you a DWI if you have an accident.
Scientists do research, do test and go into a space vehicle to do experiments. They also go out the space vehicle in space suits.
Operating a vehicle while intoxicated
When your BAC exceeds .08.
While they flew, the space shuttles were the only reusable space vehicle. Even they no longer fly.
In all 50 states, you are required to provide proof of insurance, registration, and a current driver license for the vehicle you are operating.