31. Schaeffer, who worked at the EPA for 12 years, resigned over what he called lax enforcement of clean air laws . 32. :" We understand that you know more about the international aspects of air law than we do at the Ministry. 33. Federal clean air laws require new pollution controls if the changes result in a certain amount of additional smokestack emissions. 34. But Elmar Giemulla, an air law expert in Berlin, said most of that money has gone to pay medical costs. 35. His publications attracted considerable international attention and distinguished Peng as a pioneer in the new field of international air law . 36. Last week, attorneys general from nine northeastern states trooped to Washington to protest the proposed changes in the clean air law . 37. The process then reversed in the two countries, a compelling example of evolution in action, after clean air laws reduced pollution. 38. One of the amendments that was defeated by the House Monday would have exempted clean air laws and regulations from the bill. 39. The 19-page lawsuit is the latest in a lengthy bureaucratic process over how to bring the region into compliance with clean-air laws . 40. From the end of World War II until the passing of the Air Law in July 1952, aircraft manufacture in Japan was forbidden.
