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Day 28
Note: EPA no longer updates this information, but it may be useful as a reference or resource.
- Office of Research and Development; Ambient Air Monitoring Reference and Equivalent Methods: Designation of a New Equivalent Method for PM10
- Approval and Promulgation of Air Quality Implementation Plans; Texas; Permits by Rule
- Approval and Promulgation of Air Quality Implementation Plans; Texas; Permits by Rule
AIR TEXT Files - [ZIP 13kb] - Approval and Promulgation of Air Quality Implementation Plans; Texas; Permits by Rule