http://www.dailyfinance.com/2009/08/...dit-card-laws/
Starting today, credit card issuers must mail bills 21 days -- rather than 14 days -- in advance and they must give customers 45 days notice before raising interest rates. Before this provision in the Credit Card Accountability Responsibility and Disclosure Act (CARD) took effect, credit card companies only had to give a 15-day notice of a rate increase.
In the past, by the time cardholders learned of a rate increase, there often wasn't much time to protest. Even if they chose to do so, they only had two options: paying off the account or locking in the current rate by agreeing to close the account. For many struggling to meet bills after a job loss or other emergency, neither of these options were viable.
Another change has been in minimum payments. JP Morgan Chase just changed the rules on people carrying balances of $5,000 or more. Rather than being required to pay 2.5 percent of their balances each month, cardholders must now pay five percent.