https://www.google.com/url?rct=j&sa=t&url=https://www.law360.com/environmental/articles/1169232/sens-seek-to-shine-light-on-rfs-small-refiner-waivers&ct=ga&cd=CAIyGmM0NGI4NWNlZTJlMWM5NWU6Y29tOmVuOlVT&usg=AFQjCNFOspIA8WevwyVUElMijRl0YurppA