The conflicting visibility goals of federal agencies complicate the planning efforts of industries operating in southwest Wyoming. In the absence of a state or federal mandate to reduce NOx emissions in this attainment area, two companies with active operations in southwest Wyoming — a power plant and an oil and gas operator — entered an agreement to voluntarily reduce regional NOx emissions through sharing the purchase and installation cost of low NOx burners at a coal-fired power plant. This transaction is the first of its kind in the western U.S. and yields greater environmental benefits at a lower cost than regulatory alternatives for visibility protection.

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