<P> Since 1910 , when teams were first allowed to carry players under contract in excess of those allowed to participate in regular season games , the latter has been called the `` active roster . '' With exceptions through the years for varying economic conditions ( primarily during World War I , the Great Depression , post-World War II and from 1986 - 1989 when the limit was made 24 because of rising player salaries ) , the active roster has allowed up to 25 players to participate for a Major League team within specified dates , currently Opening Day to September 1 . In 1968 the 25 - player maximum for active rosters was made a part of the first collective bargaining agreement between the major leagues and the Major League Baseball Players Association . Since 1977 teams have been required to carry a minimum of 24 players on their active rosters as well . </P>
<P> Since 1910 , when teams were first allowed to carry players under contract in excess of those allowed to participate in regular season games , the latter has been called the `` active roster . '' With exceptions through the years for varying economic conditions ( primarily during World War I , the Great Depression , post-World War II and from 1986 - 1989 when the limit was made 24 because of rising player salaries ) , the active roster has allowed up to 25 players to participate for a Major League team within specified dates , currently Opening Day to September 1 . In 1968 the 25 - player maximum for active rosters was made a part of the first collective bargaining agreement between the major leagues and the Major League Baseball Players Association . Since 1977 teams have been required to carry a minimum of 24 players on their active rosters as well . </P>
when does mlb go to 25 man roster
when does mlb go to 25 man roster
1968
1968