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Hazardous Waste Generator Requirements

If you produce a waste that is hazardous, you are a hazardous waste generator. As a business owner, it is important to know whether you generate a hazardous waste. First you must know when a material becomes a waste. Generally, a waste is any discarded material that is not excluded by rule or other legal mechanisms. If you have a material that you can no longer use, it is probably a waste. Not all wastes that are recycled are exempt from regulation.

Any person who generates a waste (other than a household) must determine if the waste meets the definition of a hazardous waste. If the waste is hazardous, the generator must store, treat, transport and dispose of their hazardous waste, according to Ohios hazardous waste rules.


Requesting a Hazardous Waste 30-day Extension

  • Ohio Administrative Code (OAC) rules 3745-52-16(D) and 3745-52-17(B) allow small and large quantity generators to request an extension to the 180/90-day accumulation time limit if the generator encounters unforeseen, temporary, and uncontrollable circumstances with transporting hazardous waste off-site. The Director of the Ohio EPA may grant up to a 30-day extension on a case-by-case basis. Please note, the request must be received by Ohio EPA prior to the expiration of the hazardous waste accumulation date to be considered for an extension.

    To request an extension, fill out the 30-Day Extension Form and submit electronically to: epaderrweb@epa.ohio.gov. Please contact the Compliance Assurance Section of the Hazardous Waste Program at 614-644-2924 with any questions.

Related Webpages


Rules and Laws

Rules applicable to all generators

Here are some but not all of the unique requirements based on your generator status:





Guidance Documents, Fact Sheets, and Reports


Household Hazardous Waste

Hazardous Waste Inspection

Hazardous Waste Labs

Hazardous Waste Treatment

Land Disposal Restriction


Universal Waste


Generator Inspection Checklists:




If Applicable:


The requirements a generator must comply with depends on the amount of hazardous and acute hazardous waste generated each month and the total amount of hazardous and acute hazardous waste the generator has on-site at one time. There are three categories of hazardous waste generators; they are often referred to as very small quantity generators (VSQG), small quantity generators (SQG) and large quantity generators (LQG).



Acute Hazardous Waste

Hazardous Waste


Generation per
Total Accumulation
Generation per
Total Accumulation
VSQG ≤  1 kg ≤ 1 kg ≤ 100 kg ≤ 1,000 kg
SQG     > 100 kg and < 1,000 kg > 1,000 kg and < 6,000 kg
LQG > 1 kg > 1 kg ≥ 1,000 kg ≥ 6,000 kg
The following estimates will vary according to the density of the waste.
1 kg ≈ 1 qt
100 kg ≈ 27 gal (about ½ of a 55-gallon drum) or 220 lbs
1,000 kg ≈ 270 gal (about five 55-gallon drums) or 2,200 lbs
6,000 kg ≈ 1,620 gallons (about 30 55-gallon drums) or 13,200 lbs
Note: Accumulation times vary according to generator status. Generation starts the moment a material is discarded.




Phone: (614) 644-2924

Fax: (614) 644-3146

Email Webmaster

Physical address:
Lazarus Government Center
50 W. Town St., Suite 700
Columbus, OH 43215

Mailing address:
Lazarus Government Center
P.O. Box 1049
Columbus, OH 43216-1049

Mathews, Mitchell Manager 614-644-2953
Heffelfinger, Tammy Supervisor 614-644-2954
Kabelen, Zak Environmental Specialist 2 614-441-0262
Narotski, Bill Environmental Specialist 2 614-728-1264
Shipley, Kristie Environmental Specialist 2 614-728-5363
Weiler, Stephen Environmental Specialist 2 614-728-5367