In early 2013 the Minnesota Pollution Control Agency (MPCA) and its contractor, the Stratford Companies, called for interested hospitality businesses and organizations in Minnesota to participate as partners in this project. At this time, 19 voluntary partners are working with the contractor to test their thermal receipt papers for BPA and BPS content and implement changes to their point-of-sale systems and operating procedures to reduce the amount of thermal paper they use and the amount of BPA or BPS to which their employees are exposed.