The use of steroids has become a major issue in baseball and a recent book appeared to open the door to allegations of abuse.
The league’s steroid testing has been criticised as too lenient but a first-time offender will be suspended for 10 days, and the penalty is 30 days for a second offence.
Third-time offenders will be suspended for 60 days, and anyone found guilty of a fourth offence faces a 12-month ban.
Every player will undergo at least one unannounced test on a randomly selected date during the playing season.
There is no specific limit on the number of tests to which any player may randomly be subjected, and it includes random testing during the off-season.
