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Subpart X (Miscellaneous Units)

RCRA miscellaneous units are a unique category of hazardous waste management units, covered under 40 CFR Part 264, Subpart X. Units covered under Subpart X do not fit neatly within the definition of the more typical waste management units described in Part 264 (containers, tanks, incinerators, etc.). To be permitted, Subpart X units must meet environmental performance standards, while other Part 264 units must meet specific technology standards.

Subpart X Rule (PDF) (58 pp, 90K, About PDF)

Selected Policy Letters

States That Are Authorized for Subpart X (PDF) (1 pg, 10K, About PDF)

Examples of Existing Subpart X Permits

Policy Letters

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