Why Football Referees Have Letters & Numbers

By vIQtory

All players have numbers on their jerseys for referees to differentiate who committed a foul and who is legal to catch the football. Referees, however, have numbers and letters on their uniforms for a different reasons.

Football referees have letters and numbers on their uniforms to identify which position they are in. Similar to players, football referees have positions they are responsible for. The referee with the white hat is the head referee and will signal any penalties.

This article will show each referee’s position and what each letter/number means on the back of their uniform.

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Referees In Football

Referees, similar to players on the field, all have positions. Each position is responsible for specific calls on the field.

Below, each referee position is broken down:

football referees
via NFL operations

Referee (R)

They are typically lined up 10-12 yards behind the line of scrimmage.

The referee is the leader of the officiating crew that is often seen wearing a white hat.

The referee is responsible for making sure there are 11 players on the field.

The referee is also accountable for roughing the passer/roughing the kicker calls.

Umpire (U)

This referee is lined up opposite of the referee, 10-12 yards behind the line of scrimmage.

In youth and high school leagues, the umpire is lined up behind the linebackers on defense.

The umpire is watching for holding or any lineman infractions pre-snap.

Down Judge (DJ)

The down judge is the referee that is on the side of the first down makers.

He’ll direct the chain crew to move for a first down or to hold the spot.

He monitors sideline play for any out-of-bounds penalties or offsides by the defense.

Line Judge (LJ)

The Line judge is positioned on the complete opposite side of the down judge.

Similar to the down judge, the line judge is responsible for any defensive line penalties pre-snap, as well as monitoring the sideline for any late hits.

In youth and high school, these referees are also responsible for holding or pass interference penalties.

Field Judge (FJ)

The field judge is lined up about 20 yards behind the line of scrimmage on the defensive side of the ball.

This referee is responsible for all downfield penalties, including pass interference and holding.

Another tough job for the field judge is determining if a player got both feet down on a catch (1 in high school and college).

They are also the referee that signals “touchdown” when a player crosses the goal line.

Side Judge (SJ)

In the defensive backfield lined up roughly 20 yards from the line of scrimmage.

Like the field judge, this referee is responsible for downfield penalties, determining a catch on the sideline, and signaling a touchdown.

Back Judge (BJ)

The back judge is the deepest referee on the defensive side of the football.

This referee keeps track of the 40/25 second game clock.

The back judge can be seen holding his hand in the air when there are 10 seconds left on the play clock.

This is an essential referee to pay attention to pre-snap to avoid a delay of game penalty.

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Why Do Football Referees Have Numbers?

Referees wear numbers to differentiate themselves from other referees.

While this may not make sense at a younger level (most officials will have a letter on their back rather than a number), it’s essential at the NFL and college levels.

Just like players need to be identified on film, so do officials.

To date, there are roughly 115 officials in the NFL, so that each referee will have a number.

When the league does official reviews, it’s easy to identify which referee is doing a fair or poor job.

The numbers on the referee jerseys help differentiate.

As mentioned, it’s common to see referee jerseys with just a letter on the back to determine which referee is who.

Football referees and all referees, in general, are the backbone of this sport.

They help maintain order in a physical, contact sport.

Without referees, the game would be chaos. Be sure to respect your local referees and never criticize them with insults because of a bad call.

Why Does One Referee Wear A White Hat?

The official that wears a white hat is known as the head referee.

This is the “leader” or the “captain” of the referees.

This official will talk to the coach if there’s an incident, be responsible for removing players from the game, and announce if there’s a penalty.

The referee wears a white hat to distinguish himself from the other referees.

Always look for the referee with the white hat if there’s ever an issue.

The referee with the white hat will also stop the game if necessary to address any issues.

In a hierarchical sense, the referee with a white hat can be seen as the “head coach” of referees, with each referee being the assistant.

Keep Learning

Referees wear numbers and letters to identify themselves in a football game.

Like football players, referees have numbers and letters to let the coaches know who will make a call.

For instance, a back judge will be responsible for signaling touchdown and worry about plays that happen downfield.

Side judges are responsible for offside and any pre-snap penalties.

Every referee has a job and a duty. This is, so calls don’t go missing, and the referee isn’t trying to scan the entire play looking for a penalty.

Referees can stay hyper-focused on one part of the field and be as efficient as possible in that one area.

Referees hold all the power in any football game. They’re the reason we can play and coach football in a controlled environment. They regulate the game and ensure that everyone abides by the rules.

Although you may disagree with the referee’s calls and decisions, they’re essential to football. Without referees, there would be no way to officiate football games properly.

This is important to think about when you disagree with a call.

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About the author

Chris Haddad is the founder of vIQtory Sports. Chris has coached football for 12+ years and continues to coach at the high school level. He continues to study and provide valuable content for those looking to learn more about this wonderful game of football.