In fact, the 2013 Pest Management Standards for Food Plants from the National Pest Management Association state that at least once per year, a supervisor, quality assurance staff person or manager from the pest management company shall review the entire program on-site. The quality assurance audit shall include a review of the program, records, pest activity trends and frequency of service, as well as the monthly inspections to make sure that all documentation is in order. In addition, this group should also review labels and material safety data sheets (MSDS) to ensure that all products currently in use have updated information. MSDS and labels of pest management products used at that facility must be filed either as hard copy or as electronic records.