The results of one of those reports were released Thursday and calls for new Federal safety standards. The U.S. Chemical Safety Board met in Washington D.C. Thursday morning and voted to approve the final report from a two-year investigation of the hazards of combustible dust. Board members are calling on OSHA to close the gaps that exist when it comes to companies that deal with combustible dust. Investigators found the explosion at the West Pharmaceutical plant in Kinston was caused by dust that had accumulated above a suspended ceiling in the plant. Officials say as of right now, there is no standard requiring companies that handle combustible dust to handle it safely.