TOPEKA -- On Friday the District of Columbia court of appeals left intact a ruling against a new clean-air policy from the Environmental Protection Agency. Under the rule, states were required to reduce air pollutants from sources like power plants to protect the health of people living in the area. In august, a three judge federal panel ruled against the EPA. Kansas was one of more than a dozen states that challenged the regulation. State attorney general Derek Schmidt said had the rule been enacted, it would have imposed additional costs to utility rate payers. The court of appeals ruling will stand unless the US Supreme Court takes up the case.