California waste code 511 Empty drums of 30 gallons or more that held pesticide.

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Based on California Title 22 and DTSC guidance
Nothing is stored

Miscellaneous
Large pesticide container

A pesticide container holds at least 30 gallons and still requires hazardous waste management.

Empty pesticide containers of 30 gallons or more that still need hazardous waste handling. Other large ones have their own code.

Is California code 511 hazardous waste?

Not from the code alone. Waste must first be found hazardous. Code 511 isn't a restricted code, but a restricted category that fits takes priority over it. A code that isn't restricted doesn't make waste non-hazardous.

When a shipment needs the Uniform Hazardous Waste Manifest, enter 511 in Item 13 for the waste line. Use one California code, plus the federal RCRA codes when the waste is federally hazardous.

RCRA waste meets a federal listing or characteristic, with no federal exclusion that applies. Non-RCRA waste is hazardous under California rules only. California presumes hazardous waste is RCRA unless the generator shows it isn't, so keep that determination.

What does California code 511 cover?

This code is for a pesticide container of 30 gallons or more, only when it still needs hazardous-waste management. First apply California's contaminated-container exemption, and manage any rinsate separately.

Capacity: 30 gallons or more
Official wording: 22 CCR division 4.5, chapter 11, Appendix XII(b)

Is an empty pesticide drum California code 511, 512 or 513?

Code	When it fits
511	The non-exempt container held pesticide and has capacity of at least 30 gallons.
512	The non-exempt container held something other than pesticide and has capacity of at least 30 gallons.
513	The non-exempt hazardous-waste container has capacity below 30 gallons.

Capacity picks a code only after the container fails the section 66261.7 exemption. What the container held separates 511 from 512.

Which wastes take California code 511?

Waste	When it’s 511
Empty pesticide container, 30 gallons or more	The emptied pesticide container has capacity of at least 30 gallons and remains non-exempt hazardous waste

Which codes sit beside California code 511?

Code	What it is
521	Mud from drilling
531	Chemical toilet waste
541	Photographic processing chemicals
551	Discarded laboratory chemicals
561	Discarded detergent or soap
571	Fly, bottom or retort ash
581	Waste from a gas scrubber
591	Dust collected by a baghouse