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Ohio law defines composting as a method of solid waste disposal using controlled biological decomposition. Composting activities occurring at a residence and those activities using less than 500 square feet at a non-residential location are not subject to Ohio’s composting regulations. 

Composting facilities are classified according to the feedstocks they are allowed to accept and are required to obtain a registration, license and/or permit from Ohio EPA, as applicable. The classifications are:

  • Class I: Mixed solid waste
  • Class II: Yard waste, agricultural plant materials, animal waste, dead animals, raw rendering material and food scraps
  • Class III: Yard waste, agricultural plant materials, animal waste, and dead animals, raw rendering material
  • Class IV: Yard waste and agricultural plant materials

Other requirements established by the program include: operational requirements; recordkeeping; and testing requirements for compost product prior to distribution.

Home Composting

Composting at Home

Composting is natures way of recycling leaves, grass clippings, kitchen scraps and other organic wastes by converting them into a valuable soil amendment called compost. By composting at home, youll enjoy the financial benefits of free soil enrichment, reduce the amount of solid wastes sent to landfills and conserve resources.

Composting at home is very easy and practical. Once you learn the basics, youll be turning out lush piles of rich compost in short order. Using compost yields faster-growing, stronger plants. The chief value in using compost is the beneficial effect on soil structure. Incorporating compost into the soil improves aeration and drainage and makes the soil loose and easy to work. Compost increases the organic matter content of clay and sandy soils, allowing them to better retain water and nutrients. It also helps control erosion, proper pH balance and plant disease.

To help you get started, see Composting: Recycle the Natural Way.

Bin There, Done That

You can purchase a composting bin in a wide variety of types and prices, or you can build your own. All bins should have some method of easy opening for turning and retrieving the compost. The ideal size for a composting bin is 1 cubic yard (3x3x3'). Multiple bins or piles are recommended for different stages of the process. Its important to note that while many people prefer to use an enclosure for composting, bins are not essential to the process. Excellent compost can be made in open piles.

Build Your Own Bin

  • Logs or poles stacked or bound together

  • Cinder blocks laid without mortar, with air spaces between them

  • Snow fencing or chicken wire supported by upright posts

  • A steel barrel with the bottom removed and holes punched in the sides

  • Other container, limited only by your imagination

Put Your Pile Together

First, select a well-drained spot out of direct sunlight. Then layer your materials like this:

  • Start with a layer of brown material, like straw and leaves.

  • Add a layer of green material, such as grass clippings.

  • Alternate layers of brown and green materials as they are available.

Once your bin is full, or the pile is the size you want, turn the mixture every three to five days. You may turn it less frequently or not at all, but the compost will take longer to heat up. Water regularly to ensure enough moisture is present. Remember that when squeezing a handful of compost, it should be as wet as a wrung-out sponge.

If you do not have enough material when you start your pile, additional layers may be added later. Smaller piles are okay, but the rate of decomposition will be slower. If you have a thermometer available, test the temperature of the pile. The temperature inside of the pile should range from 130 to 150 degrees Fahrenheit. When it begins to cool, the bacteria and other organisms need more air, so its time to turn and water the pile.

The top should be covered with a layer of earth, with a depression to collect water if precipitation is low. This top layer should be thick enough to retain the heat of the pile and prevent rapid loss of moisture. Your compost pile will also benefit from ventilation. A broomstick, fence post or similar device can be used to punch three or four holes from the top to the bottom of the pile.

Eliminate the "Ewwww"? Factor

Some people are concerned that their compost piles will have an unpleasant odor or attract animals. To avoid this, omit cooked kitchen waste, grease, meat, bones and fat unless the bin is rodent-, fly- and dog-proof. But if your pile smells bad, turn it to make sure it has enough oxygen. Earthworms, sow bugs, pill bugs, centipedes, mites, ground beetles and many other kinds of small living things will find homes in the finished compost and in the garden soil to which compost is added. They help with the decomposition process and add value to the soil.

Also, do not use weedy or diseased plant material to eliminate the possibility of spreading it through your finished product.

How long will it take?

Compost can be made in just two or three weeks during the summer if the leaves and other materials are finely ground or shredded, turned frequently to provide good aeration and supplied with sufficient moisture and nitrogen. The usual method, however, is to turn the pile once a week for two or three weeks, then once a month until the compost is ready to use. Compost made in the fall is usually not ready for use until the following spring. Shredding or grinding the material prior to adding it to the pile will expose a greater surface area to the bacteria and fungi and will speed up the process.

How do I know if it's working?

Heat is generated inside the pile as soil organisms decompose organic material. Therefore, temperature is a good indicator of effective composting. A compost pile with a temperature over 130 degrees Fahrenheit is composting efficiently. (You may see steam when you turn the file.) Larger pile size helps retain heat.

How do I know when it's ready to use?

Compost is ready to use when it is dark brown in color, easy to crumble and breaks up readily when turned over. A good practice is to screen the compost through a 1/2-inch screen. The material that falls through is ready to use. Return the unfinished material to the bin for further decomposition.

What can I do with it?

Compost can be used as mulch or worked into the soil to improve its structure. If used as mulch, it should be applied 2 or 3 inches deep. The same amount or more should be worked into heavy clay soils. You'll discover that compost is a valuable soil conditioner easily available to every Ohioan willing to invest a little time and effort in cooperation with nature.



Phone: (614) 644-2621

Fax: (614) 728-5315

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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 


Shockley, Alison  Manager (614) 728-5335
Angel Arroyo-Rodriguez  Environmental Specialist 3,  Infectious Waste, Composting (614) 728-5336
Anthony Blevins Environmental Specialist 2, Infectious Waste and Composting (614) 728-5328