The NFL officially announced its offseason workout program dates Monday afternoon, with the Kansas City Chiefs set to begin on Monday, April 17.

OTA offseason workouts will take place May 23-25, May 30-31 and June 6-9. Chiefs mandatory minicamp is set for June 13-15.

As per Article 21 of the Collective Bargaining Agreement, each club's official, voluntary nine-week offseason program is conducted in three phases:

Phase One consists of the first two weeks of the program with activities limited to strength and conditioning and physical rehabilitation only.

Phase Two consists of the next three weeks of the program. On-field workouts may include individual player instruction and drills as well as team practice conducted on a "separates" basis. No live contact or team offense vs. team defense drills are permitted.

Phase Three consists of the next four weeks of the program. Teams may conduct a total of 10 days of organized team practice activity, or "OTAs". No live contact is permitted, but seven-on-seven, nine-on-seven, and 11-on-11 drills are permitted.

Article 22 of the Collective Bargaining Agreement stipulates that clubs may hold one mandatory minicamp for veteran players. This minicamp, noted below, must occur during Phase Three of the offseason program.

For more information along with the schedules for each of the 32 NFL teams, click here.