The rules over the last two years are working,” said Dan Grossman, the Rockie Mountain regional director for the Environmental Defense Fund. “They’re proven. Companies are complying and methane pollution is being reduced.” And the EPA rules are only in place for new facilities. The organization is still working on a plan to handle existing facilities. In Colorado, the rules address both new installations and structures that already exist. We like the fact that Colorado is leading the way in keeping businesses productive while keeping a close eye on the environment.