Chapter NR 417 - Control of sulfur emissionsBrowse as ListSearch WithinSection NR 417.01 - Applicability; purposeSection NR 417.02 - DefinitionsSection NR 417.03 - General limitationsSection NR 417.05 - Petroleum refineriesSection NR 417.06 - Total reduced sulfur limitationsSection NR 417.07 - Statewide sulfur dioxide emission limitations