Football Ops

Football Ops

Protecting the integrity of the greatest game.

NFL Ops: Honoring the Game

It's our responsibility to strengthen the sport.

League Governance

Ensuring a consistent and fair game that is decided on the field, by the players.

NFL Rules Enforcement

Ensuring that players conduct themselves in a way that honors the sport and respects the game.

NFL Way to Play

Knees Bent. Pads Down. Head Up.

The NFL and HBCUs

The NFL is proud of the HBCU professional football legacy.

Economic & Social Impact

Honoring the league’s commitment to serve the communities where the game is played.

The NFL Ops Team

Meet the people behind NFL Operations.

The Game

The Game

Learn about the people, the jobs and the technology that deliver the best game possible to NFL fans across the U.S. and around the world. 

Gameday: Behind the Scenes

Countdown to kickoff: how NFL games happen.


In the NFL, balancing technology with tradition.

Impact of Television

How television has changed the game.

History of Instant Replay

Upon further review…

Creating the NFL Schedule

It takes hundreds of computers and five NFL executives to create the NFL’s 256-game masterpiece.

Big Data Bowl

The inaugural analytics contest explores statistical innovations in football — how the game is played and coached.

Youth Football

Promoting the values of football.

The Players

The Players

Learn how NFL players have changed over time, how they’re developed and drafted and how the league works with them after their playing days are over.  

Evolution of the NFL Player

Creating an NFL player: from “everyman” to “superman.”

Development Pipeline

Supporting the next generation of players and fans.

Getting Into the Game

Preparing players of all ages for success at football’s highest level.

The NFL Draft

Introducing the next wave of NFL superstars. 

NFL Player Engagement

A look at the programs and services NFL Player Engagement provides to assist every player before, during and after his football career.

College All Star Games

Strengthening football and the community.

NFL Legends Community

Strengthening the NFL brotherhood.

The Officials

The Officials

Discover the evolution of professional officiating, the weekly evaluation process and how the NFL identifies and develops the next generation of officials.

In Focus: History of the Official

“One thing hasn’t changed: the pressure. It will always be there.”

Inside NFL GameDay Central

The latest information from the NFL's officiating command center.

These Officials Are Really Good

Every week, officials take the field ready to put months of preparation, training and hard work on display, knowing that the whole world — and the Officiating Department — is watching.

Officiating Development

Officiating an NFL game takes years of training and experience. 

The Rules

The Rules

NFL Football Operations protects the integrity of the game by ensuring that the rules and the officiating are consistent and fair to all competitors.

In Focus: Evolution of the NFL Rules

The custodians of football not only have protected its integrity, but have also revised its playing rules to protect the players, and to make the games fairer and more entertaining.

NFL Video Rulebook

The NFL Video Rulebook explains NFL rules with video examples.

2018 NFL Rulebook

Explore the official rules of the game.

2018 Rules Changes and Points of Emphasis

NFL Overtime Rules

NFL Tiebreaking Procedures

The NFL's procedures for breaking ties for postseason playoffs.

Signals Intelligence

The NFL's familiar hand signals help fans better understand the game.   

NFL Rules Digest

A quick reference guide to the NFL rulebook.

Football 101

Football 101

Terms Glossary

Sharpen your NFL football knowledge with this glossary of the game's fundamental terms. 

Formations 101

See where the players line up in pro football's most common offensive and defensive formations.

Quick Guide to NFL TV Graphics

Understand what the graphics on NFL television broadcasts mean and how they can help you get the most out of watching NFL games.

NFL Instant Replay Process

The NFL’s instant replay review process focuses on expediting instant replay reviews and ensuring consistency. Learn how it works.

Stats Central

Stats Central

Go inside the game with the NFL's official game stats. Sort the stats by season or by week.

Chart The Data

Chart and compare the NFL Football Operations stats you're looking for with the NFL's data tool. 

Weekly Dashboard

Get a snapshot of the current NFL game stats, updated weekly during the regular season.

The NFL and Football Research, Inc. (FRI) announced the winners of the HeadHealthTECH Challenge III, the latest in the Tech Challenge series, which is operated and managed on behalf of FRI by Duke University's Clinical and Translational Science Institute (Duke CTSI). The TECH Challenge series is designed to stimulate research and innovation in protective equipment including helmets and related technologies, turf systems, shoulder and other pads and additional innovative concepts.

The NFL and FRI also announced that the submission window for TECH Challenge V through June 6, 2018, and that the winners are expected to be announced in June 2018.

"Through grant awards to the winners, and the mentorship and feedback from Duke CTSI to each company that submits, the TECH Challenge series continues to serve as an innovative engine in the advancement of sports safety protective equipment," said Jeff Miller, NFL Executive Vice President of Health and Safety Initiatives. "The winners of TECH Challenge III showcase a range of promising materials designed to absorb and reduce impact, and we are proud to support their development."

"This program offers more than grants — it's an opportunity to work closely with our team at Duke CTSI to help get a new idea or technology off the ground and into the marketplace," said Barry Myers, MD, PhD, MBA, Director of Innovation at Duke CTSI, Coulter Program Director and Professor of Biomedical Engineering at Duke University and a consultant to the NFL Players Association (NFLPA). "I am excited by the progress range of proposals we've seen throughout the series, and I encourage all inventors and entrepreneurs to submit their ideas for TECH Challenge V."

TECH Challenge III Winners:

  • Impressio, Inc., of Denver, Colorado, in partnership with the University of Colorado, Denver, received a grant of $121,949 to support development and testing of its ultra-dissipative football helmet padding made from liquid-crystal elastomers (LCEs). Impressio uses LCEs to create novel dissipative liner materials for protective equipment designed to overcome the challenges of energy absorption in current helmet foams. Impressio is a materials engineering company dedicated to improving human health and safety through innovative applications of LCE Technology.  
  • HRL Laboratories, LLC, of Malibu, California received a grant of $186,043 to support development and testing of its novel impact-attenuating pads for football helmets. HRL's three-dimensional lattice padding aims to offer improved volumetric energy absorption compared to existing vinyl nitrile foam pads.
  • AES Research & Design, of Baltimore, Maryland received a grant of up to $20,000 for the testing of its anti-rotational kinematic (ARK) helmet prototype, which is designed to significantly reduce the rotational forces that a football player experiences during contact. The ARK helmet is a collaborative project involving the Hopkins Extreme Materials Institute at Johns Hopkins University, National Technical Systems and several material suppliers.

FRI awards the most promising TECH Challenge proposals with a total of up to $1 million a year, including in-kind support. For TECH Challenge III, a panel of expert judges selected by Duke CTSI, in collaboration with FRI, reviewed and provided feedback on all proposals. Every TECH Challenge applicant not selected is invited to reapply, and receives constructive feedback from Duke CTSI experts to help refine their innovations and increase their chances for success on future submissions.