Section 313 of the Emergency Planning and Community Right-To-Know-Act of 1986 (EPCRA) requires the annual submittal of toxic chemical release information to the US Environmental Protection Agency. The following document is the July 1994 submittal of the Hanford site EPCRA Toxic Chemical Release Inventory (TRI) Report. Included is a Form R for chlorine, the sole chemical used in excess of the established regulatory thresholds at the Hanford Site by the US Department of Energy, Richland Operations Office and its contractors during Calendar Year 1993. Only those facilities that fall within the Standard Industrial Classification (SIC) code range of 20 through 39 are subject to mandatory reporting under EPCRA, Section 313. However, on August 3, 1993, Executive Order 12856 was signed, requiring all federal agencies and facilities to comply with pollution prevention and emergency planning and community right-to-know provisions established by Section 313 of EPCRA and Section 6607 of the Pollution Prevention Act of 1990, without restriction to the specified SIC Codes. The report format requires identification of the facility SIC Code in the TRI Report. Application of definitions and requirements provided in Title 40, Code of Federal Regulations Part 372.22 has led to the adoption of SIC Code 9999, Nonclassifiable Establishments, as the primary Hanford Site SIC Code for EPCRA regulatory assessments. The SIC Code 9999 determination is based on a broad analysis of the current mission of the Hanford Site which includes environmental and waste management, demonstration and application of advanced remediation technologies, and environmental restoration.