The policy, first recommended by commissioner Roger Goodell at league meetings in April, is aimed at conduct that the league said "detracts from the gameday experience."
It includes bans on:
• Behavior that is unruly, disruptive, or illegal.
• Drunkenness and signs of alcohol impairment that result in irresponsible behavior.
• Foul or abusive language or obscene gestures.
• Interference with the progress of the game, including throwing objects onto the field.
• Failing to follow instructions of stadium personnel.
• Verbal or physical harassment of fans from the opposing team.
"The in-stadium experience is critically important to the NFL, our clubs and our fans and it will be a major focus this season," Goodell said in a statement. "We are committed to improving the fan experience in every way we can -- from the time fans arrive in the parking lot to when they depart the stadium."
The league also left teams the option of adding additional provisions to the code based on local circumstances. It said the guidelines would be contained in mailings to fans and signs posted at stadiums.
