/industries/refining/b/weblog/posts/ways-for-refineries-to-comply-with-epa-tier-3-regulationsProcess manufacturers and producers are faced with a myriad of regulations at the federal, state and local levels. Here in the U.S., refiners are challenged with the Environmental Protection Agency (EPA)’s “Tier 3″ regulations , whic...en-USTelligent Community 13