NEW YORK - The Direct Marketing Association thinks the recently signed postal reform law lets the U.S. Postal Service charge different rates in the summer and, potentially, even different rates by days of the week. This statement came from Jerry Cerasale, DMA senior vice president of government affairs, who spoke at the Direct Marketing Club of New York's February luncheon at the Yale Club. Monday is the busiest day, so you might pay more, he said. Tuesday, on the other hand, may have the least amount of mail volume, so maybe you pay less if you have delivery on Tuesday. Those are the kinds of things we think will give the postal service [the chance] to hold off on costs and remain competitive, and we really hope that happens. Though the law may help the USPS and direct marketers stay competitive, it will not affect the current rate case. The law does not stop the current rate case, Mr. Cerasale said. "