Every round is 5 minutes in duration with a one minute rest period in-between rounds. Non-title matches must not exceed three rounds. Title matches can be sanctioned for five rounds.
The ten-point must system is used for all fights. Three judges score each round with ten points to the winner and nine points or fewer to the other fighter. In New Jersey, the fewest points a fighter can receive is 7. If the round is even, both fighters receive ten points. Penalty points (usually one point for each offence, occasionally two points) decided by the referee are deducted from each judge's score for that round for the offending fighter.
At the end of the fight, each judge submits their total score for all rounds for each fighter, to determine the result by the following criteria.
Unanimous decision win: All three judges have the same fighter as the winner.
Majority decision win: Two judges have one fighter winning the fight and the third judge scores it a draw.
Split decision win: Two judges have one fighter winning the fight and the third judge has the other fighter winning it.
Unanimous draw: All three judges score it a draw.
Majority draw: Two judges score it a draw, and the third judge has a winner.
Split draw: One judge scores it a draw, and the other two judges have different winners.
As set out by the Association of Boxing Commissions:
Holding or grabbing the fence
Holding opponent’s shorts or gloves
Butting with the head
Biting or spitting at an opponent
Intentionally placing a finger into any orifice, or into any cut or laceration of your opponent
Eye gouging of any kind
Groin attacks of any kind
Downward pointing of elbow strikes (see Elbow strike)
Small joint manipulation
Strikes to the spine or back of the head (see Rabbit punch)
Heel kicks to the kidney
Throat strikes of any kind, including, without limitation, grabbing the trachea
Clawing, pinching, twisting the flesh or grabbing the clavicle
Kicking the head of a grounded opponent
Kneeing the head of a grounded opponent
Stomping of a grounded fighter
The use of abusive language in fighting area
Any unsportsmanlike conduct that causes an injury to opponent
Attacking an opponent during a break
Attacking an opponent who is under the care of the referee
Timidity (avoiding contact, consistent dropping of mouthpiece, or faking an injury)
Interference from a mixed martial artist's cornerman
Throwing an opponent out of the ring or caged area
Flagrant disregard of the referee’s instructions
Spiking an opponent to the canvas on his or her head or neck (see Piledriver)
Attacking an opponent after the bell has sounded the end of the period of unarmed combat
When a foul is charged, the referee in their discretion may deduct one or more points as a penalty. If a foul incapacitates a fighter, then the match may end in a disqualification if the foul was intentional, or a "no contest" if unintentional. If a foul causes a fighter to be unable to continue later in the bout, it ends with a technical decision win to the injured fighter if the injured fighter is ahead on points, otherwise it is a technical draw.
Contestants shall complete all pre-licensure medical examinations and tests required by the jurisdiction licensing the contest.
The jurisdiction licensing the contest shall conduct or supervise all pre-contest weigh-ins and may hold or supervise a rules meeting for all contestants and their cornermen.
Post-Contest medical examination.
Immediately following a contest, each contestant shall be given a medical examination by a physician appointed by the commission. The medical examination may include any examinations or tests the commission deems necessary to determine the post-contest physical fitness of a contestant.
Any contestant who refuses to submit to a post-contest medical examination shall be immediately suspended for an indefinite period.