The USCCB website has a liturgical calendar for 2007 here:
usccb.org/liturgy/current/2007cal.pdf
and for 2008 here:
usccb.org/liturgy/current/2008cal.pdf
This liturgical calendar lists feasts, but not days of fast and abstinence. You can find those here:
usccb.org/lent/2007/Penance_and_Abstinence.pdf
From this document we read that in the United States, Roman Catholics are required to fast and abstain from meat on Ash Wednesday and Good Friday. We abstain from meat on all Fridays of Lent.
Fridays throughout the year are also days of penitential observance. While abstaining from meat is still recommended for Fridays outside Lent, we can choose another form of penance or mortification if we prefer.