1986 NFL season

Dick Hantak was promoted to referee after serving eight seasons as a back judge (the position title was changed to field judge in 1998). Fred Silva was then assigned as a swing official instead of his own crew after suffering a heart attack in the offseason. Chuck Heberling was scheduled to be an instant replay official, but was asked to remain on the field following Silva's heart attack. Herberling earned assignment to the AFC championship.

• Players are prohibited from wearing apparel, equipment, or other items that carry commercial names, names of organizations, or any type of personal message unless they get specific permission from the league.
• If the offensive team commits a dead ball foul during the last two minutes of a half, the clock will start at the snap.
• If an offensive player fumbles the ball and it goes forward and out of bounds, the ball is returned to that team at the spot of the fumble.
• If an offensive player fumbles the ball in the field of play and it goes out of bounds in the opponent's end zone, the ball is given to the defensive team at the spot of the fumble (this rule would be changed in 1991 to result in a touchback).
• A limited system of instant replay was adopted to aid officiating. A replay official in a booth would decide what plays to review and make the final ruling, regardless of the current score or the amount of time left in the game. The replay official communicated with the game officials via radio transmitters. However, there was no time limit on how long the replay official could review a play and this led to long game delays (this was a major reason why the system was eventually repealed in 1992 and not brought back until a more comprehensive replay system with time limits were established in 1999).

American Bowl

A series of National Football League pre-season exhibition games that were held at sites outside the United States, the only American Bowl game in 1986 was held at London’s Wembley Stadium.

Date	Winning Team	Score	Losing Team	Score	Stadium	City
August 3, 1986	Chicago Bears	17	Dallas Cowboys	6	Wembley Stadium	London

Note: The New York Giants (the NFC one seed) did not play the Washington Redskins (the four seed) in the Divisional playoff round because both teams were in the same division.

* Indicates overtime victory

** Indicates double-overtime victory

The following players set all-time records during the season:

• The Buffalo Bills began wearing their white pants with their white jerseys, discontinuing their blue pants. This was the first time the Bills wore white pants with their white jerseys since 1972.
• The New Orleans Saints switched to gold pants, discontinuing both their black and white pants. A secondary logo featuring a fleur-de-lis inside an outline of the state of Louisiana was added to both the jersey sleeves and the sides of the pants. The Saints retained this look through 1995.
• The numbers on the San Diego Chargers' blue jerseys changed from gold to white.
• The New York Giants added a "Spider 43" patch to their jerseys in memory of former Giants safety Carl "Spider" Lockhart following Lockhart's death from lymphoma on July 9, 1986. The Giants would also add a "38" decal to the back of their helmets in memory of former Giants running back John Tuggle following Tuggle's death on August 30, 1986 from angiosarcoma.

This was the fifth and final year under the league's broadcast contracts with ABC, CBS, and NBC to televise Monday Night Football, the NFC package, and the AFC package, respectively. This was the last season that games remained only on broadcast television, as the league would sign a deal with the cable channel ESPN to broadcast a series of Sunday night games starting in 1987.[3]

ABC opted to go to a two-man booth, dropping Joe Namath and O. J. Simpson, moving Frank Gifford to its sole color commentator, and having Al Michaels serve as the new play-by-announcer. Gifford would once again call the play-by-play during those weeks when Michaels was busy calling the Major League Baseball playoffs, and Lynn Swann or Simpson would fill-in.

• NFL Record and Fact Book (ISBN 1-932994-36-X)
• NFL History 1981–1990 (Last accessed December 4, 2005)
• Total Football: The Official Encyclopedia of the National Football League (ISBN 0-06-270174-6)