 The Supreme Court is also opening the door to new challenges of federal regulations long after they take effect. This was a 6-3 ruling along ideological lines, and the justices ruled in favor of a truck stop in North Dakota that wants to sue over the fees banks can charge for debit card transactions. Federal law sets a six-year deadline for broad challenges to regulations. But the justices tonight say that the clock doesn't start ticking until a plaintiff is impacted by the regulation.