Specific procedures may be established for testing specific gun designs, if the head chrono official deems it necessary. Liquid operating systems will be rapid-fired prior to the initial test shot, in order to guarantee liquid CO2 status. Players may not adjust, disassemble, or otherwise alter or tamper with their paintgun's velocity regulating system or power source until their team has completed the post-game chronograph check. This is to guarantee that the initial shot is fired over the official chrono. During a game, if a player suspects his paintgun is shooting over the chronograph limit, he may call himself out by reporting to a referee on the field and stating the reason he is calling himself out.
Players are subject to on-field chronograph and metal detector inspections.
If a player is chronographed on-field, he will not be required to chronograph his gun again after that game. A single clearing shot will be fired and, if that shot exceeds 300 FPS, three subsequent shots will totaled. Shooting at another player across a boundary or from out of bounds is not permitted. Merely brushing against a boundary line is not considered an intentional alteration of the boundary. A player's first priority when fired upon should be to check himself to determine if he has been marked before continuing aggressive action.