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Solid Waste | AZ Used Oil Regulatory Program

Solid Waste Section | Used Oil

Arizona Used Oil Regulatory Program

Revised On: Dec. 28, 2023 - 5:00 p.m.

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 | Learn More About Collection Centers >

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 >

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.

Periodic Reports

Each calendar quarter, each used oil transporter, processor and marketer is required to submit a written report to ADEQ about its used oil activities for the preceding calendar quarter.6 Each year, each used oil burner is required to submit a written report to ADEQ about its used oil activities for the preceding calendar year.7All client lists and related identifying information contained in these periodic reports are treated as confidential.

Labeling8

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

Testing8

ADEQ must collect samples of used oil to determine compliance with the used oil specifications, as part of its quality assurance/quality compliance program.


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)
7Per A.R.S. § 49-802(C)(4)
8Per A.R.S. § 49-802(C)(5)