July 8, 1997 36 min read Download Report Angela Antonelli Visiting Fellow Introduction On June 25, 1997, President Bill Clinton circumvented a long-established White House regulatory review process by endorsing a controversial Environmental Protection Agency (EPA) proposal that would tighten the National Ambient Air Quality Standards (NAAQS) for the allowable levels of particulate matter (PM) and ozone.2 Since 1981, Presidents have used executive orders to require that rules--especially...