 This led to Michigan Department of Military and Veterans Affairs to seek a permit from the Michigan Department of Natural Resources for the take of the plant during the construction of the building.The permit required ten years of monitoring along a transect in a black locust dominated area near the armory construction.At the end of the ten years it was determined that further surveys needed to be conducted elsewhere on the installation, not only because it was apparent the plant occurred elsewhere on the 7,500 acre property, but also because there was the threat of more take due to new construction in 2012.