The 4 new NFL rule proposals, from a new onside kick to challenging penalties, explained

The offseason isn’t just the space where NFL teams reload their rosters. It’s also the period where they suggest new rules to improve a continually evolving game.

Changing the NFL rulebook is a complicated task. First, teams propose new policies for an upcoming season. Then the league’s competition committee adds their improvements. Those are bundled together and brought to the NFL’s annual meetings, where all 32 owners vote on their ratification.

If a rule change gets 75 percent approval — 24 votes — it’s in. Otherwise, it gets tossed to the scrap heap and, maybe, brought up the following spring in slightly tweaked form.

We’re a little less than two weeks from that annual meeting and knowing the fates of these proposals. Let’s take a look at the four new on-field rules pitched by teams — and one procedural change that could spice up the trade deadline.