From: About.com Warning: Owning, registering, insuring, or driving a Jeep implies knowledge of and intent to abide by the following rules, regulations, and guidelines. Failure to obey the letter or spirit of the rules may result in your being ignored by other Jeep owners as you sit along the side of the road next to your stalled vehicle in a blizzard surrounded by Saturns, Yugos, and Hyundais. Definition: The Jeep Wave: An honor bestowed upon those drivers with the superior intelligence, taste, class, and discomfort tolerance to own the ultimate vehicle - the Jeep. Generally consists of vigorous side-to-side motion of one or both hands, but may be modified to suit circumstances and locally accepted etiquette. Examples of commonly accepted modifications: Top off: One handed wave above windshield or outside body tub Top off during blizzard: Shiver and nod, hands may remain frozen to steering wheel Southern/rural locations: Raise fingers from steering wheel, nod It's not what you buy, it's what you build and what you do with it. In keeping with this cardinal rule of Jeeping, categories have been established to account for each part of the equation. These categories are: The Jeep Waving Hierarchy: Based on the vehicle itself. Takes into account the nostalgia factor, the discomfort tolerance quotient, and the amount of owner dedication required to maintain the steed. The Modifying Sub-categories: Based on what you do with your Jeep. Equipment Adjustments: What you build. General Rules: 1. All Jeepers are responsible for upholding the tradition of the Wave. Upon contact with a higher scoring Jeep, a Jeeper is required to initiate the Wave, and continue the Wave until: a. The Wave is returned b. The Wave is blatantly disregarded c. The higher scoring vehicle has passed by and is out of sight 2. All Jeepers are required to return the Wave, unless the initiating vehicle is clearly has a negative (below 0) score. 3. All Jeepers are encouraged, but not required, to return the Wave to negative balance vehicles, and take any opportunity presented to guide and mentor them about their responsibilities to their Jeeps in the hopes that they can correct the error of their ways. 4. When unsure of status or wave requirements of a particular encounter or unable to completely assess the other Jeep's score quickly enough to ensure that the proper Jeep Wave Etiquette rules are followed, immediately initiate wave. "When in doubt, WHIP IT OUT!"