What is a cat 2 approach?

A Cat 2 approach most commonly refers to Category II instrument landing system approach in aviation, which is a precision approach that allows pilots to land in lower visibility than Category I. A CAT II approach has decision height of 100 feet above runway and runway visual range of 1200 feet, compared to CAT I which requires 200 feet decision height and 1800 feet visual range, meaning pilots can get closer to runway before deciding to land or go around, enabling landings in denser fog. CAT II approaches require more sophisticated aircraft equipment, pilot training, and ground equipment including more precise localizer and glideslope, runway lighting, and backup systems. In tractor context, Cat 2 approach could mean approach to using Category 2 implements. In medical context, Cat 2 approach might mean approach to Category 2 triage patients who are urgent but not immediate. In business, Cat 2 approach could mean approach to second category issues. However, the most widely recognized definition is aviation, where CAT II approaches are used at major airports to maintain operations in poor weather, requiring autoland capability and crew certification. Airports must have special markings and lighting for CAT II. Pilots must have specific training and recency. If you saw Cat 2 approach in farming context, it likely means approach angle for attaching Cat 2 implements. Providing context of where you saw term will help give more precise answer, as Cat 2 approach is primarily aviation term.