February 23 -- Deadline for clubs to designate franchise and transition players.
March 2 -- Deadline for submission of qualifying offers by clubs to their restricted free agents whose contracts have expired and to whom they desire to retain a right of first refusal/compensation.
March 2 -- Deadline for clubs to submit offer of minimum salary to retain exclusive negotiating rights to their players with fewer than three seasons of free agency credit whose contracts have expired.
March 3 -- Veteran free agency signing period begins.
March 3 -- Trading period begins.
March 18 -- NFL Europe League season begins.
March 26-30 -- NFL Annual Meeting, Orlando, Florida.
April 21 -- Signing period ends for restricted free agents.
April 28 -- Deadline for old club to exercise right of first refusal to restricted free agents.
April 29-30 -- NFL Draft, New York City.
May 10-12 -- NFL Coaches Career Development Symposium, Orlando, Florida.
May 20 -- NFL Europe League regular season ends.
May 21-24 -- NFL Spring Meeting, Denver, Colorado.
May 27 -- World Bowl XIV, Düsseldorf, Germany.
June 1 -- Deadline for old clubs to send tender to unsigned unrestricted free agents to receive exclusive negotiating rights for rest of season if player is not signed by another club by July 22.
June 1 -- Deadline for old clubs to send tender to unsigned restricted free agents or to extend qualifying offer to retain exclusive negotiating rights.
June 15 -- Deadline for old clubs to withdraw original qualifying offer to unsigned restricted free agents and still retain exclusive negotiating rights by substituting tender of 110 percent of previous year's salary.
June 25-28 -- NFL Rookie Symposium, Carlsbad, California.
Late July -- Training camps open.
July 22 -- Signing period ends at 4:00 PM ET for unrestricted free agents who received June 1 tender.
August 6 -- Pro Football Hall of Fame Game, Canton, Ohio.
August 10-14 -- First preseason weekend.
August 29 -- Roster cutdown to maximum of 65 players.
September 2 -- Roster cutdown to maximum of 53 players.
September 7-11 -- Kickoff 2006 Weekend.