# Approval and Promulgation of Implementation Plans; State of California; Interstate Transport of Pollution; Significant Contribution to Nonattainment and Interference With Maintenance Requirements
> **Rule** · — · Published 2011-07-20 · 76 FR 43175
## Document
- **Document number:** C1-2011-14480
- **Category:** other
- **Federal Register citation:** 76 FR 43175
- **CFR reference:** 40 CFR 52
- **Publication date:** 2011-07-20
- **State:** CA
- **EPA docket:** EPA-R09-OAR-2011-0046
## Source
- [Federal Register document](https://www.federalregister.gov/documents/2011/07/20/C1-2011-14480/approval-and-promulgation-of-implementation-plans-state-of-california-interstate-transport-of)
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