US EPA

The Glossary will provide you a complete list of definitions, acronyms and abbreviations that are used on this site.

Entire List - The complete list of definitions, acronyms and abbreviations.

Use the links below to get a list of each code.

Form Codes - Form codes describe the general physical and chemical characteristics of a hazardous waste.

Management Method Codes - Management method codes describe the type of hazardous waste management system used to treat, recover, or dispose a hazardous waste.

Source Codes - Source codes describe the type of process or activity (i.e., source) from which a hazardous waste was generated.

Waste Codes

Dxxx - Characteristics of Hazardous Waste (See 40 CFR 261.24)

Fxxx - Hazardous Waste from Non-specific Sources (See 40 CFR 261.31)

Kxxx - Hazardous Waste from Specific Sources (See 40 CFR 261.32)

Pxxx - Discarded Commercial Chemical Products, Off-specification Species, Container Residuals, and Spill Residues thereof - Acute Hazardous Waste (See 40 CFR 261.33)

Uxxx - Discarded Commercial Chemical Products, Off-specification Species, Container Residuals, and Spill Residues thereof - Toxic Wastes (See 40 CFR 261.33)

Waste Minimization Codes - Waste minimization codes describe the type of waste minimization, recycling, or pollution prevention efforts used to reduce the volume and toxicity of the hazardous waste generated at your facility.

Process Codes - Process codes specify the unit group's current waste treatment, storage, or disposal process.