It permits teams only to use tablets in lieu of black-and-white paper photos of pre-snap and post-snap images. For now, teams have the ability to decide whether to continue with the old system or to use the new one.
The system gained approval of the Competition Committee earlier this year. It could eventually replace the current mechanism for looking at photos during games.
Instead of the lower-quality black-and-white pictures, the tablets will deliver high-definition, color images over a secure wireless system. Coaches and players will be able to draw on the photos and save their notes.
Teams also will be permitted to take the tablets to the locker room during halftime to review photos with notes. During halftime, however, the tablets won’t be connected to the wireless system.
Mike Florio  wrote: