90-Degree Cart Rule vs Cart-Path-Only

These illustrations use one fictional hole: tee at the bottom, green at the top, cart path on the left, and a ball in the fairway to the right. They compare travel choices, not a real course's access plan.

Route A — 90 degrees. Travel up the path to the ball's level. Turn right toward the ball, play, then return left to the path. Continue along the path toward the next stop. The approach to and return from the ball form the short cross-fairway movement in the diagram.

Route B — cart path only. Travel to a permitted stopping position on the path. Park as directed and take the clubs you need to the ball on foot. The dashed line in the illustration represents walking; it does not authorize a cart detour.

Source: The Ins and Outs of the 90-Degree Rule, USGA Green Section.

Leaving the path near the tee and driving diagonally along the fairway is different from waiting until you are level with your ball. Staying on the grass after hitting also keeps traffic off the path for longer.

The USGA explains that the policy can distribute entry/exit points and reduce turf traffic. Its practical benefit relies on golfers using the path for the longer part of the journey.

Suppose the direct line from the path to the ball crosses a rope. The geometry in a general illustration does not override that closure. Remain on a permitted route, walk from an allowed stopping place, or ask the staff where the cart may go.

The same applies when a day's instructions vary by hole. Read the sign that applies to the area you are approaching rather than carrying the first tee's example into every situation.

• Ask which cart policy is in effect today and whether any holes differ.
• Check where carts may stop or turn around.
• Keep the walking portion distinct from the cart route when planning your stop.
• Follow temporary ropes, stakes and closure signs.

Cart access is separate from ball relief. For interference by a path, use Cart-Path Relief. For playing-rule situations rather than driving instructions, use Tournament Rules Scenarios.