http://sports.espn.go.com/mlb/news/story?id=2050587
essentially, the new policy will be:
First offense of either steroids or amphetamines: 50 game suspension
Second offense of above: 100 game suspension
Third offense: lifetime ban
Up from the old policy, applying to steroids only, of:
1st offense - 10 days
2nd - 30 days
3rd - 60 days
4th - 1 year
5th - Selig's choice