# Approval and Promulgation of Implementation Plans; Arkansas; Crittenden County Base Year Emission Inventory
> **Rule** · — · Published 2016-01-22 · 81 FR 3723
## Document
- **Document number:** C1-2016-00559
- **Category:** other
- **Federal Register citation:** 81 FR 3723
- **CFR reference:** 40 CFR 52
- **Publication date:** 2016-01-22
- **State:** AR
- **EPA docket:** EPA-R06-OAR-2015-0647
## Source
- [Federal Register document](https://www.federalregister.gov/documents/2016/01/22/C1-2016-00559/approval-and-promulgation-of-implementation-plans-arkansas-crittenden-county-base-year-emission)
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