Below is a calendar sent out by the league of important dates and deadlines.
June 23-29 – Rookie Symposium, Aurora, Ohio.
July 11 – Supplemental Draft (if necessary).
July 15 – At 4:00 p.m., New York time, deadline for any club that designated a Franchise Player to sign such player to a multi-year contract or extension. After this date, the player may sign only a one-year contract with his prior club for the 2013 season, and such contract cannot be extended until after the club’s last regular season game.
Mid-July – Clubs are permitted to open preseason training camp for rookies and first-year players no earlier than 22 days prior to the club’s first preseason game.
Veteran players (defined as a player with at least one pension-credited season) other than quarterbacks or “injured players” (as defined in CBA Article 21, Section 6) may report to a club’s preseason training camp no earlier than 15 days prior to the club’s first scheduled preseason game or July 15, whichever is later.
Veteran quarterbacks and injured players may be required to report to the club’s preseason training camp no earlier than five days immediately prior to the mandatory reporting date for all other veteran players, provided the club has already opened (or simultaneously opens) its official preseason training camp for all rookies and first-year players.
A three-day acclimation period will apply to players who are on a club’s roster up to and including the mandatory veteran reporting date. Players who join the roster after that date may practice (including wearing pads) and play immediately after passing a physical.
July 22* – Signing Period ends for Unrestricted Free Agents to whom a “June 1 Tender” was made by prior club. After this date and until 4:00 p.m., New York time, on the Tuesday following the 10th weekend of the regular season, prior club has exclusive negotiating rights.
* or the first scheduled day of the first NFL training camp, whichever is later.
August 3 – Hall of Fame Enshrinement Ceremony, Canton, Ohio.
August 4 – Hall of Fame Game, Dallas Cowboys vs. Miami Dolphins, Canton, Ohio.
August 6 – Deadline for players under contract to report to their clubs to earn an Accrued Season for free agency.
August 6 – If a drafted rookie has not signed with his club by this date, he cannot be traded to any other club in 2013, and may sign a player contract only with the drafting club until the day of the draft in the 2014 League Year.
August 8-11 – First Preseason Weekend.
August 15-19 – Second Preseason Weekend.
August 22-25 – Third Preseason Weekend.
August 27 – Prior to 4:00 p.m., New York time, clubs must reduce their rosters to a maximum of 75 players on the Active List.
August 28 – All tryouts on this date and for the remainder of the season must be reported to the League office.
August 29 – Final Preseason Games.
August 31 – Prior to 6:00 p.m., New York time, clubs must reduce rosters to a maximum of 53 players on the Active/Inactive List.