August 30, 2014
August 29, 2014
August 28, 2014
GAO (Government Accountability Office) Recommends Federal Action on Ammonium Nitrate
A deadly explosion at a fertilizer plant last year has a government watchdog agency calling on federal agencies to assume a greater role in preventing accidents from ammonium nitrate (AN).
The Government Accountability Office (GAO) has recommended that OSHA, EPA and the Department of Homeland Security (DHS) take action after its investigation found numerous gaps in federal oversight of AN facilities. GAO’s investigation was launched at the request of members of Congress after some 30 tons of AN detonated during a fire at a plant in West, Texas in April 2013. The incident resulted in the deaths of more than a dozen people and extensive property damage.
OSHA’s explosives regulations,, which have not been significantly revised since 1971, apply to AN facilities. The OSHA regulations allow the substance to be stored in wooden buildings, which increases the fire and explosion hazard, GAO said in a report released May 21. In addition, GAO asserted OSHA has done little outreach to increase awareness of its rules within the fertilizer industry, a primary user of AN. OSHA’s high hazard workplace inspection program does not target AN facilities and, according to GAO, information on these facilities is not available to OSHA to use for targeting.
Other OSHA and EPA chemical safety regulations require facilities to complete hazard assessments, use procedures to prevent and respond to accidents and conduct routine compliance audits, but the rules do not apply to AN, according to GAO.
GAO said the total number and location of U.S. facilities storing AN is unknown. However, the facilities that reported to DHS as having reportable quantities of ammonium nitrate were most often engaged in supplying and supporting the agriculture and mining industries. Neither OSHA nor EPA has reporting requirements; however, DHS requires facilities storing reportable quantities to provide the information for security purposes. Federal law also requires certain facilities to report their AN holdings to state and local agencies for emergency response purposes, but the data is not routinely shared with federal authorities. Under a 2013 Executive Order, federal agencies are exploring options for improving data sharing, but this effort remains unfinished.
“Federal data provide insight into the number of facilities in the United States with ammonium nitrate, but do not provide a complete picture because of reporting exemptions and other data limitations,” GAO wrote.
Federal agencies should improve data sharing among themselves and with the states, OSHA and EPA should consider revising their related regulations to cover AN, and OSHA ought to conduct outreach to the fertilizer industry and target high risk facilities for inspection, GAO recommended.
Steps to improve communications have already been taken, the auditors noted in their report. For instance, OSHA recently published information and updated its website to explain how its regulations on explosives and blasting agents at 29 CFR 1910.109 apply to AN fertilizer, what legal requirements apply and how to store and handle AN safely. An August 2013 advisory – issued jointly by OSHA, EPA and the Bureau of Alcohol, Tobacco and Firearms – highlighted OSHA’s regulations for fertilizer-grade AN.
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