# Issuance of Guidance Memorandum, “Reclassification of Major Sources as Area Sources Under Section 112 of the Clean Air Act”
> **Rule** · Issuance and withdrawal of guidance memorandums. · Published 2018-02-08 · Effective 2018-02-08 · 83 FR 5543
## Document
- **Document number:** 2018-02331
- **Category:** air-emissions
- **Federal Register citation:** 83 FR 5543
- **CFR reference:** 40 CFR 63
- **Publication date:** 2018-02-08
- **Effective date:** 2018-02-08
- **EPA docket:** FRL-9973-51-OAR
## Abstract

The Environmental Protection Agency (EPA) is notifying the public that it has issued the guidance memorandum titled "Reclassification of Major Sources as Area Sources Under Section 112 of the Clean Air Act". The EPA is also withdrawing the memorandum titled "Potential to Emit for MACT Standards--Guidance on Timing Issues."

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2018/02/08/2018-02331/issuance-of-guidance-memorandum-reclassification-of-major-sources-as-area-sources-under-section-112)
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