Here's a list of important dates for the 2013 NFL calendar.
TODAY: East-West Shrine Game (St. Petersburg, Fla.)
SUN: Conference championships
Jan. 24-25 Regional combine, University of Hawaii (Honolulu)
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Jan. 26 Senior Bowl (Mobile, Ala.)
Jan. 27 AFC-NFC Pro Bowl (Honolulu)
Feb. 2 Texas vs. Nation college All-Star game (Allen, Texas)
Feb. 3 Super Bowl XLVII (Mercedes-Benz Superdome, New Orleans)
Feb. 9-10 Regional combine, Oregon Coast College – Lebard Stadium (Los Angeles)
Feb. 16 Regional combine, Methodist training center (Houston)
Feb. 17 Regional combine, Cleveland Browns training facility (Cleveland)
Feb. 18 Franchise tag period begins (Ends March 4)
Feb. 20-26 NFL scouting combine (Indianapolis)
March 2-3 Regional combine, Atlantic Health Jets training facility (New York/New Jersey)
March 4 Deadline for using franchise tag
March 9 Regional combine, One Buccaneer Place (Tampa, Fla.)
March 10 Regional Combine, Halas Hall (Chicago)
March 9-11 Clubs are permitted to enter into contract negotiations with certified agents of players who will be unrestricted free agents at the end of the current league year.
* Prior to 4 p.m. ET, clubs must exercise options for 2013 on all players who have option clauses in their 2012 contracts.
* Prior to 4 p.m. ET, clubs must submit qualifying offers to their restricted free agents with expiring contracts and to whom they desire to retain a right of first refusal/compensation.
* All 2012 player contracts will expire at 4 p.m. ET
* Top-51 Begins. All clubs must be under the salary cap prior to 4 p.m. ET
* Trading period begins at 4 p.m. ET for 2013, after expiration of all 2012 contracts.
March 16-17 Regional combine, Atlanta Falcons training facility (Atlanta)
March 17-20 Annual league meeting, The Biltmore (Phoenix)
March 23-24 Regional combine, VMAC (Seattle)
April 7-8 Super regional combine, Cowboys Stadium (Dallas)
April 25-27 2013 NFL Draft (New York)
May 20-22 NFL Spring league meeting, Hyatt Harborside (Boston)
Sept. 5 NFL Kickoff 2013