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Solid Waste | AZ Used Oil Regulatory Program

Solid Waste Section | Used Oil

Arizona Used Oil Regulatory Program

Revised On: Mar. 28th, 2025 - 12:14 pm

When Arizona adopted federal regulations for managing used oil,1 the following additional regulatory provisions were needed to meet Arizona's needs.2

Used Oil Collection Centers3

A facility that accepts small quantities of used oil (55 gallons or less per individual load) from regulated generators is required by law to register with ADEQ. A used oil collection center4 is required to register with ADEQ, which will issue an identification number to each registrant.

To register as a used oil collection center:

  • There is no fee and the registration is good for the life of the facility (but not transferable from one location to another)
  • Submit a completed application to ADEQ’s Solid Waste Unit by mail, email or fax per the application instructions | Download Application >

NOTE: Used oil marketers, burners, processors and transporters are all required to obtain an EPA ID number through myDEQ. Learn more about how to obtain an EPA ID number | Learn More >

Marketer's Certification5

A marketer must provide certification to a burner that it is selling on-specification used oil fuel to the burner. A burner is not criminally liable for burning off-specification used oil fuel that was certified by a marketer as on-specification.

Annual Reports

Used oil handlers (burners, marketers, processors and transporters), as defined in 40 Code of Federal Regulations Part 279, are required to submit to ADEQ a written report annually as follows:6

Used Oil Handler Types and their Reporting Deadlines

  • Burners — February 1 for the previous calendar year
  • Marketers — 30 days after the end of the calendar year to which the report applies
  • Processors — 30 days after the end of the calendar year to which the report applies
  • Transporters — 30 days after the end of the calendar year to which the report applies

The required forms to submit this information can be found in the “Forms” dropdown in the sidebar of this webpage. All client lists and related identifying information contained in these periodic reports are treated as confidential.

Labeling7

Any tank that stores on-specification used oil is required to be labeled: "on-specification used oil."

Testing7

ADEQ may collect samples of used oil to determine compliance with the used oil specifications.


1A.R.S. adopts the federal used oil program (40 C.F.R. § 279) as amended on Jan. 1, 1997, by reference
2Per A.R.S. § 49-802(C)
3Per A.R.S. § 49-802(C)(1)
4As defined in 40 C.F.R. § 279
5Per A.R.S. § 49-802(C)(2)
6Per A.R.S. § 49-802(C)(3), A.R.S. § 49-802(C)(4)
7Per A.R.S. § 49-802(C)(5)