Illinois Accumulation Time regulations & environmental compliance analysis

Illinois Accumulation Time: What you need to know

Governing Law and Regulations

Large quantity generators (LQGs):

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90-day accumulation time rule for LQGs: 35 Illinois Administrative Code (IAC) 722.117(a)

Accumulation time rule for LQGs accumulating F006: 35 IAC 722.117(c)

Small quantity generators (SQGs):

180-day accumulation time rule for SQGs: 35 IAC 722.116(b)

270-day accumulation time rule for SQGs: 35 IAC 722.116(c)

LQGs and SQGs:

Satellite accumulation: 35 IAC 722.115

Returned shipments: 35 IAC 722.117(g) and 35 IAC 722.116(e)

Quantity limitations for very small quantity generators (VSQGs): 35 IAC 722.114

Extensions and exceptions:

Extensions beyond 90 days for LQGs: 35 IAC 722.117(b) and 35 IAC 722.117(e)

Extensions beyond 180 days (or 270 days) for SQGs: 35 IAC 722.116(d)

Regulatory Agency

Illinois Environmental Protection Agency (IEPA) Bureau of Land Division of Land Pollution Control

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Illinois has adopted the U.S. Environmental Protection Agency's (EPA) Hazardous Waste Generator Improvements Rule, effective in Illinois as of November 19, 2018. The federal accumulation time rules allow generators to accumulate hazardous waste on-site without a permit for specific periods of time. See the national section ACCUMULATION TIME to review the specific time periods applicable to each type of generator. See the state section HAZARDOUS WASTE STORAGE for more specific information on how generators may accumulate hazardous waste on-site without a permit.

Administration and enforcement. The Illinois Environmental Protection Agency's (IEPA) Division of Land Pollution Control administers and enforces the state's accumulation time rules.


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