Dear Panther Pals or any other knowledgeable party. Am I required to display a Michigan MSPC decal on my van. Every year Con-WAY sent me a MSPC decal. These were the same people that sent me IFTA decals one year. When I questioned that, they assured me it was required. Two weeks after applying the IFTA decals they wanted them back. So, do I need the MSPC decal????