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1-bromopropane (1-BP, also known as n-propyl bromide (nPB)) is an organic solvent used within adhesive formulations, metal surface cleaning operations, and as a solvent in the dry cleaning industry. In 2014, OSHA issued a hazard alert because occupational exposure to 1-BP has been linked to neurological illnesses. Animal studies have also shown effects on the male and female reproductive systems, liver, and hematopoietic systems. In October 2014, the National Toxicology Program classified 1-BP as reasonably anticipated to be a human carcinogen. There is no OSHA PEL for 1-BP. An RFI would allow the agency to explore the need for a PEL or comprehensive rule. OSHA is withdrawing this entry from the agenda at this time due to resource constraints and other priorities.