Law 5 - The Referee
Ump Attire - The NFL is back! Let's wish our officials... | Facebook
Why Do NFL Referees Have Numbers on Their Uniforms?
NFL Relaxes Restrictions on Jersey Numbers - The New York Times
What do the letters stand for on the back of football referees' shirts? - Quora
Misogyny greets World Cup's first female refs – DW – 06/29/2022
Ed Hochuli, N.F.L. Referee, Has Long Had Fan Support - The New York Times
How Much Are NFL Referees Paid? | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
All the Gear Super Bowl 50 Refs Will Use to Call the Game | WIRED
NFL Officials: Preparing for Success | NFL Football Operations
Officials' Responsibilities & Positions | NFL Football Operations
College football referees have an impossible job. Here's why - Sports Illustrated
Yeah, the O-line is important, but referees are Tom Brady's best friends
Empty stadium impact on referee decisions, home field advantage - Sports Illustrated
How Much Are NFL Referees Paid? | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
New NFL font
Football League referees will clamp down on time-wasting and punish dissent next season | Daily Mail Online
Why Football Referees Have Letters & Numbers – vIQtory Sports
NRL referees should take step back in finals
Super Bowl LIV: How NFL Measures First Downs Is Primitively Low-Tech
What do the letters stand for on the back of football referees' shirts? - Quora
