March 2 - Final day to designate franchise or transition players.
March 10 - All teams must be under the 2015 salary cap; all 2014 player contracts expire; free agency begins.
March 19 - Trading period for 2015 begins.
March 22-25 - Annual league meeting, Phoenix.
April 6 - Teams with new head coach can begin offseason workouts.
April 20 - Teams with returning head coach can begin offseason workouts.
April 30-May 2 - NFL draft, Chicago.