# Finding of Failure To Submit Required State Implementation Plans for Particulate Matter; Arizona; Phoenix PM-10 Nonattainment Area
> **Rule** · Final rule. · Published 1998-02-25 · Effective 1998-02-06 · 63 FR 9423
## Document
- **Document number:** 98-4821
- **Category:** air-emissions
- **Federal Register citation:** 63 FR 9423
- **CFR reference:** 40 CFR 52
- **Publication date:** 1998-02-25
- **Effective date:** 1998-02-06
- **State:** AZ
- **EPA docket:** AZ-006-FON FRL-5969-8
## Abstract

Under the Clean Air Act (Act), EPA is taking final action to find that the State of Arizona has failed to make required State Implementation Plan (SIP) submittals for the metropolitan Phoenix PM-10 nonattainment area. These submittals are the regional moderate area plan requirements for the 24-hour PM-10 standard and the serious area plan requirements for annual PM-10 standard and the regional serious area requirements for the 24-hour standard. The deadline for these submittals was December 10, 1997. This final action triggers the 18-month time clock for mandatory application of sanctions and 2-year time clock for a federal implementation plan under the Act. This action is consistent with the Act's mechanism for assuring SIP submissions.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1998/02/25/98-4821/finding-of-failure-to-submit-required-state-implementation-plans-for-particulate-matter-arizona)
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