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 Ohio’s hazardous waste rules.

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

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 conditionally exempt small quantity generators (CESQG), small quantity generators (SQG) and large quantity generators (LQG).



Acute Hazardous Waste

Hazardous Waste


Generation per
Total Accumulation
Generation per
Total Accumulation
≤ 1 kg
≤ 1 kg
≤ 100 kg
≤ 1,000 kg
> 100 kg and < 1,000 kg
> 1,000 kg and < 6,000 kg
> 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
Ferron, Peter Environmental Specialist 2 (614) 728-5367
Kabelen, Zak Environmental Specialist 2 (614) 441-0262
Killeen, Timothy Environmental Specialist 2 (614) 728-8961
McConnell, Tamara Environmental Specialist 2 (614) 644-2922
Shipley, Kristie Environmental Specialist 2 (614) 728-5363