Cooperative Federalism: State Perspectives on EPA Regulatory Actions and the Role of States as Co-Regulators March 9, 2016 09:30 AM 406 Dirksen Steven M. Pirner Secretary, South Dakota Department of Environment and Natural Resources Related Files Pirner Testimony.pdf (36.5 KBs) Return to Hearing Related Files SPW 030916.pdf (124.6 KBs) Permalink: https://www.epw.senate.gov/public/index.cfm/2016/3/cooperative-federalism-state-perspectives-on-epa-regulatory-actions-and-the-role-of-states-as-co-regulators