- Aeronautica: Advanced training in how to operate flying vehicles, from transports to combat aircraft. This specialisation is sufficient for taking capable craft from orbit down to a planet, but not for performing complex manoeuvres outside of a planet's atmosphere.
- Civilian: Advanced training in how to operate non-military ground vehicles such as Cargo Haulers or personal transports.
- Military (Restricted): Advanced training in how to operate military ground vehicles, such as tanks. Typically, training in this specialisation is given by Astra Militarum instructors, to characters of sufficient rank.
- Minor Voidship (Restricted): Advanced training in operating smaller space vessels, from void fighters to transports. Typically, training in this specialisation is given by Imperial Navy instructors, to characters of sufficient rank.
- Major Voidship (Restricted): Training in how to operate the truly vast ships of the Imperial Fleet — Cruisers, Destroyers, Frigates, and similar. Typically, training in this specialisation is given by Imperial Navy instructors, to characters of sufficient rank.
Piloting represents a character's knack for controlling the movements of a vehicle under stressful conditions. Dropping a kill team on a crumbling spiretop, outpacing xenos raiders, or ramming a Ridgerunner through the wall of a heretical cult’s sanctum. An accomplished pilot ideally knows how and when to safely push their vehicle beyond the sacred recommended safety limits of the vehicle’s Machine Spirit. Outside of such stressful situations, characters with this Skill can normally pilot a vehicle without requiring a Test.