In the absence of occupational exposure limits, control banding may be a useful strategy for assessing and controlling occupational hazards as part of a comprehensive safety and health program.
National Institute for Occupational Safety and Health. (2009). Qualitative risk characterization and management of occupational hazards: Control banding (CB). A literature review and critical analysis. Retrieved from www.cdc.gov/niosh/docs/2009-152/pdfs/2009-152.pdf