Voluntary offseason workout programs are intended to provide training, teaching and physical conditioning for players.

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 7-on-7, 9-on-7, and 11-on-11 drills are permitted.

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

New head coaches are entitled to conduct an additional voluntary veteran mini-camp.  Any voluntary mini-camp for veteran players must be conducted prior to the NFL Draft (April 27-29), but no earlier than week three of the club's offseason workout program and after at least one week of the two weeks of Phase One activities that the clubs may hold pursuant to Article 21. This year, five clubs will hold voluntary veteran mini-camps, as noted below.

Each club may hold a rookie football development program for a period of seven weeks, which in 2017 may begin on May 15. During this period, no activities may be held on weekends, with the exception of one post-NFL Draft rookie mini-camp, which may be conducted on either the first or second weekend following the draft. The dates of each club's post-draft rookie mini-camps have not been announced.

The NFL Offseason Workout Program calendar (dates are tentative and subject to change at the discretion of individual clubs):

ARIZONA
First Day: April 17
OTA Offseason Workouts: May 16-18, May 23-25, May 30-31, June 1-2
Mandatory Mini-Camp: June 6-8

ATLANTA
First Day: April 17
OTA Offseason Workouts: May 30, June 1-2, June 5-6, June 8-9
Mandatory Mini-Camp: June 13-15

BALTIMORE
First Day:April 17
OTA Offseason Workouts:May 23-25, May 30-31, June 1, June 5-6, June 8-9
Mandatory Mini-Camp:  June 13-15

BUFFALO
First Day:April 3
OTA Offseason Workouts:  May 16-18, May 23-25, June 5-8
Voluntary Mini-Camp: April 18-20
Mandatory Mini-Camp:June 13-15

CAROLINA
First Day: April 17
OTA Offseason Workouts:May 23-25, May 30-31, June 1, June 6, June 8-9
Mandatory Mini-Camp: June 13-15​

​CHICAGO
First Day: April 18
OTA Offseason Workouts:May 22-23, May 25, May 30, June 1-2, June 5-6, June 8-9
Mandatory Mini-Camp: June 13-15

​CINCINNATI
First Day: April 17
OTA Offseason Workouts: May 23-25, May 30-31, June 1, June 5-8
Mandatory Mini-Camp: June 13-15

CLEVELAND
First Day:April 17
OTA Offseason Workouts: May 23-25, May 30-31, June 1, June 5-8
Mandatory Mini-Camp: June 13-15

DALLAS
First Day: April 17
OTA Offseason Workouts:May 23-25, May 30-31, June 1, June 5-7
Mandatory Mini-Camp: June 13-15

DENVER
First Day: April 10
OTA Offseason Workouts:May 23-25, May 30-31, June 1, June 5-8
Voluntary Mini-Camp: April 25-27
Mandatory Mini-Camp: June 13-15

DETROIT
First Day: April 17
OTA Offseason Workouts:May 23-25, May 30-31, June 1, June 5-6, June 8-9
Mandatory Mini-Camp: June 13-15

GREEN BAY
First Day: April 18
OTA Offseason Workouts: May 22-24, May 31, June 1-2, June 5-8
Mandatory Mini-Camp:June 13-15

HOUSTON
First Day:April 17
OTA Offseason Workouts: May 22-23, May 25, May 30-31, June 1, June 5-6, June 8-9
Mandatory Mini-Camp: June 13-15

INDIANAPOLIS
First Day: April 17
OTA Offseason Workouts: May 22-23, May 25, May 31, June 1-2, June 5-8
Mandatory Mini-Camp: June 13-15

JACKSONVILLE
First Day: April 17            
OTA Offseason Workouts: May 23, May 25-26, May 30, June 1-2, June 5-6, June 8-9
Mandatory Mini-Camp: June 13-15 

KANSAS CITY
First Day: April 17
OTA Offseason Workouts: May 23-25, May 30-31, June 1, June 6-9
Mandatory Mini-Camp: June 13-15

LA CHARGERS
First Day:April 3
OTA Offseason Workouts: May 16-18, May 23-25, June 5-6, June 8-9
Voluntary Mini-Camp: April 25-27
Mandatory Mini-Camp: June 13-15

LA RAMS
First Day: April 10
OTA Offseason Workouts:  May 23-25, May 30-31, June 1, June 5-8
Voluntary Mini-Camp: April 25-27
Mandatory Mini-Camp: June 13-15

MIAMI
First Day: April 17
OTA Offseason Workouts:May 23-25, May 30-31, June 1, June 5-8
Mandatory Mini-Camp: June 13-15 

MINNESOTA
First Day:April 17
OTA Offseason Workouts: May 23-25, May 30-31, June 1, June 5-8
Mandatory Mini-Camp:June 13-15

NEW ENGLAND
First Day: April 17
OTA Offseason Workouts:May 22-23, May 25, May 31, June 1, June 12-13, June 15
Mandatory Mini-Camp: June 6-8

Key dates on the 2017 NFL/Patriots Calendar

NEW ORLEANS
First Day: April 17            
OTA Offseason Workouts: May 23-25, May 30-31, June 1, June 5-8
Mandatory Mini-Camp: June 13-15 

NEW YORK GIANTS
First Day:  April 18
OTA Offseason Workouts:May 22-23, May 25, May 30-31, June 2, June 5-6, June 8-9
Mandatory Mini-Camp:June 13-15

NEW YORK JETS
First Day: April 17
OTA Offseason Workouts: May 23-25, May 30-31, June 1, June 5-8
Mandatory Mini-Camp:June 13-15 

OAKLAND
First Day: April 17
OTA Offseason Workouts:May 22-23, May 25, May 30-31, June 2, June 5-6, June 8-9
Mandatory Mini-Camp:June 13-15

PHILADELPHIA
First Day: April 17
OTA Offseason Workouts:May 23-25, May 30-31, June 1, June 5-6, June 8-9
Mandatory Mini-Camp: June 13-15

PITTSBURGH
First Day:April 17
OTA Offseason Workouts: May 23-25, May 30-31, June 1, June 5-8
Mandatory Mini-Camp: June 13-15

SAN FRANCISCO
First Day:April 10
OTA Offseason Workouts:May 22-23, May 25, May 30-31, June 2, June 5-6, June 8-9
Voluntary Mini-Camp: April 25-27
Mandatory Mini-Camp:June 13-15 

SEATTLE
First Day: April 18
OTA Offseason Workouts: May 30, June 1-2, June 5-6, June 8-9
Mandatory Mini-Camp: June 13-15​

TAMPA BAY
First Day: April 17
OTA Offseason Workouts:May 23-25, May 30-31, June 1, June 5-8
Mandatory Mini-Camp: June 13-15

TENNESSEE
First Day: April 17
OTA Offseason Workouts:May 23-25, May 30-31, June 1, June 5-8
Mandatory Mini-Camp:June 13-15

WASHINGTON
First Day:April 17            
OTA Offseason Workouts:May 23-25, May 30-31, June 1, June 5-8
Mandatory Mini-Camp:June 13-15