United States of America

1 Identification of arsenic-bearing hazardous wastes under US regulations 

Code of Federal Regulations (CFR), US Government Printing Office, Superintendent of Documents, Washington, DC. 

Unofficial Code of California Regulations (2006) California Department of Toxic Substances Control, Sacramento, http //www.dtsc.ca.gov/LawsRegsPolicies/Title22/index.cfm. 

US Environmental Protection Agency (US EPA) (2007) Test Methods for Evaluating Solid Waste, Phys-ical/Chemical Methods, SW-486, 6th Revision, Office of Solid Waste, National Technical Information Service, Springfield, VA. 

Hazardous wastes are gases, liquids, solids, or mixtures of liquids and solids that are considered threats to human health and life. The US EPA maintains lists of specific solid and liquid wastes that by definition are 

Despite the problems at Sheffield, the Atmospheric Nitrogen Corporation, a subsidiary of the General Chemical Company, had built and operated a second plant with the same design at Syracuse, New York by 1921.The original capacity was 15 tonnes per day anunonia but it was later increased to 40 totmes per day. This plant eventually used a fused iron oxide catalyst, promoted with alumina and potash, developed at the Fixed Nitrogen Research Laboratory by A T Larson. It had first test a catalyst developed by de Jahn of the General Chemical Company. 

Production and distribution of commercial and industrial chemicals in the United States is covered by the Toxic Substances Control Act (TSCA) of 1976. TSCA was enacted by the U.S. Congress to give the U.S. Environmental Protection Agency (US-EPA) the ability to track the 75,000 industrial chemicals currently produced or imported into the United States. Under TSCA, 

412 Repeated Dose Inhalation Toxicity 28-Day or 14-Day Study, Draft Revised Guideline (December 2005) 

Source Available at the OECD Web site http /www.oecd.org/document/40/0,3343. en 2649 34377 37051368 l l l l,00.html 

Note Commenting round available to the public free of charge and can be downloaded from the OECD Web site. 

Toxicological Risk Assessments of Chemicals A Practical Guide 

All first generation fast breeder reactors have been shutdown or decommissioned with only the fast flux Test facility remaining in a standby condition awaiting final decommissioning. Fast breeder reactor development activities have been terminated with limited technology development in transmutation and pyroprocessing. 

The EBR-n, 62MW(t), has completed decommissioning steps and is now in a radiological and industrially safe condition at the direction of the US DOE. These activities followed removal of fuel for conditioning and the disposal of all bulk sodium coolant. As required by US regulations, residual sodium within reactor system will be deactivated under appropriate environmental permits after which the EBR-II will await future dismantling. 

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W. M. Doane (to United States of America as represented by Secretary of Agriculture). 

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