What is true regarding the management of unintentionally spilled fluids?

1. Fuel that is spilled during refueling must be directed into a catch can with at least 900ml volume
2. The vent of a separate hydraulic shifting system must be connected to the engine oil catch can
3. Engine oil that leaks from a broken seal must be catched by an undertray to prevent oil spills on the track and environmental pollution
4. If there is more then one local lowest point in the enclosed structure between the chassis and the ground, a minimum of 3 venting holes in necessaryCorrect