Identification Codes for Listed Wastes

Each list contains from thirty to several hundred hazardous wastes. Each waste on the lists is assigned a unique identifying code. This code consists of the following:

• Letter of the list that contains the waste (F, K, P, or U)
• Identification number (for example, a waste code)

For example, the code for spent cyanide plating bath solutions, which is a waste generated from electroplating operations, is F007. The code for arsenic pentoxide is P011. It is important to become familiar with these codes, because the management standards differ according to a waste's code.

A waste is considered hazardous if it is specifically listed in RCRA regulation 40 CFR 261. Next, we will take a closer look at each of the lists of waste.

To learn more about RCRA visit our RCRA Hazardous Waste Safety Online Training web page.