At the time of the accident, the plant had last been inspected by the Occupational Safety and Health Administration (OSHA) in 1985. According to records obtained by the Associated Press, OSHA cited the plant for improper storage of anhydrous ammonia and fined it $30; OSHA could have imposed a fine of as much as $1,000. OSHA also cited the plant for violations of respiratory protection standards, but did not issue a fine. OSHA officials said the facility was not on their "National Emphasis Plan" for inspections, because it was not a manufacturer, had no record of a major accident, and the Environmental Protection Agency did not consider it a major risk.