'Deflate-Gate': What to Know About NFL Ball Rules

What you didn't know about NFL ball regulations.

Here are five things to know about the NFL's ball rules, according to the NFL Game Operations manual:

1. Home and visiting teams should have 12 new Wilson Official NFL Footballs for referees to check before the game. Home clubs should have 12 extra balls as backup and visiting teams can provide 12 additional balls at their discretion.

2. Footballs should never be placed on or inside heated benches or in front of heaters.

3. Wilson Sporting Goods gives instructions to equipment managers for proper ball preparation, including brushing the balls and wiping them down with a damp towel.

4. Extra footballs are in ball bags during the game and put near the on-field instant replay monitor.

5. Anyone who alters the inflation of a ball faces a $25,000 fine.