Laws & Regulations
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Timber Products Processing Effluent Guidelines
Overview, regulations and support documents for the Timber Products Processing category (40 CFR Part 429).
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Oklahoma SIP-Approved Nonregulatory Provisions and Quasi-Regulatory Measures
EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Oklahoma SIP
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State Review Framework (SRF) - Georgia Final Reports
Details findings of the Georgia state review framework
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1993 Transportation Conformity Rule
This page contains 1993 Conformity Federal Registered Final Rule and Proposed Ruel
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Analysis of a Remote Sensing Clean Screen Program in Arizona
This report analyzes the effectiveness of using remote sensing data to “clean screen” vehicles for exemption from their upcoming emissions inspection and maintenance (I/M) test.
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October 1998 Draft Radian Report Updating Vehicle Profiling Credits
Remote Sensing - Summary of RSD Studies
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2001 Limited Maintenance Plan for moderate PM10 and Attachment A
These documents provide guidance on maintenance plan submissions for certain moderate particulate matter (PM10) seeking redesignation to attainment.
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Clarification of Transportation Conformity Requirements for FHWA/FTA Projects Requiring Environmental Impact Statements
This document clarifies how full compliance with the Clean Air Act transportation conformity requirements is to be achieved for FHWA and FTA projects requiring environmental impact statements (EIS).
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Improving Air Quality Through Land Use Activities Announcement
This document provides guidance on where to find more information regarding improving air quality through land use activities.
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EPA-DOT Memorandum of Understanding (MOU)
National Memorandum of Understanding Between the U.S. Department of Transportation and the U.S. Environmental Protection Agency (EPA Publication #EPA-420-F-00-020 and EPA-DOT Memorandum of Understanding (MOU) on Transportation Conformity.
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Full 1992 Inspection and Maintenance Regulations
This review summarizes the revision of Part 51 of Chapter I, Title 40 of the Code of Federal Regulations.
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1-Hour Ozone Maintenance Plans Containing Basic Inspection and Maintenance Programs
This memo provides clarification regarding anti-backsliding provisions.
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Guidance Attachment for State Inspection and Maintenance Optimization
This document provides guidance for state's to use when designing or redesigning their I/M programs.
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Acceleration Simulation Mode Test Revised Draft Test Procedure
This is a revised draft of the Acceleration Simulation Mode Test Procedures for use in Inspection and Maintenance programs.
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Guidance Memo for Inspection and Maintenance
This memo to the EPA Regional Air Division Directors transmits the guidance document entitled, Considerations for State I/M Program Optimization.
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Improving Inspection and Maintenance Performance and On-board Diagnostics Monitor Readiness Memo
This EPA memorandum transmits an updated list of vehicles that exhibit issues related to OBD (on board diagnostics) monitor readiness and makes suggestions for how Inspection/Maintenance (I/M) programs can improve operational performance by addressing
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Guidance on Interim Approval of Inspection and Maintenance Plans
This document provides guidance on interim approval of I/M plans.
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Description of the High and Low Emitter Profile Models
Letter from Radian International to U.S. EPA Describing the High and Low Emitter Profile Models.
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Roadside Inspection Program in California
This report summarizes the key aspects of the Bureau of Automotive Repair s (BAR) Roadside Inspection Program.
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Smog Check Station Performance
The report reviews the performance of different categories of inspection station in California and maintenance (I/M) program, also known as the Smog Check program.