Here's how it will work: Snapchat users can turn on location services on their smartphones, so when they're at certain NFL games and events they'll be able to contribute to that particular NFL Live Story. Then people everywhere will be able to access the "Live Story," which will be available on Snapchat for 24 hours after the event.
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There's also an advertising component-- brands can pay the NFL and Snapchat to "present official NFL Live Stories" for the platform.
This follows a pilot in which the NFL and Snapchat partnered on a Live story from the NFL Draft in Chicago. That first test was a success, viewed by nearly 15 million fans worldwide.
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The NFL has made a slew of announcements about new ways it's embracing digital distribution, from offering live games to Verizon customers mobile devices, to distributing one game exclusively on Yahoo. This latest deal doesn't include the same footage fans would find on TV, though there will be game footage, just in the form of user Snaps.