# Additional Air Quality Designations for the 2006 24-Hour Fine Particle National Ambient Air Quality Standards, 110(k)(6) Correction and Technical Correction Related to Prior Designation, and Decisions Related to the 1997 Air Quality Designations and Classifications for the Annual Fine Particles National Ambient Air Quality Standards
> **Rule** · — · Published 2011-03-18 · 76 FR 14812
## Document
- **Document number:** C1-2011-2269
- **Category:** air-emissions
- **Federal Register citation:** 76 FR 14812
- **CFR reference:** 40 CFR 81
- **Publication date:** 2011-03-18
- **EPA docket:** EPA-HQ-OAR-2007-0562
## Source
- [Federal Register document](https://www.federalregister.gov/documents/2011/03/18/C1-2011-2269/additional-air-quality-designations-for-the-2006-24-hour-fine-particle-national-ambient-air-quality)
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