Imagined Air-Cleaning Technologies are Good Enough for CA Supreme Court

The decision was a win for environmentalists, says Maura Dolan of the Los Angeles Times:

"The ruling came in a lawsuit brought by paint manufacturers against the South Coast Air Quality Management District, which regulates pollution from sources other than vehicles.
The American Coatings Assn. Inc., challenging standards that limited pollution-causing substances in paints and other coatings, contended that new rules should rely on the best available technology."

Loyola Law professor Daniel P. Selmi told the L.A. Times:

"The district's mandate is to obtain health-based air quality standards, and it can't do that unless it is able to adopt rules that force the development of technology," Selmi said.