Laws & Regulations
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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.
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Methodology used for Calculating VMT
The report provides the estimation of the annual VMT in California to help evaluate the effectiveness of the California s inspection and maintenance (I/M) program, also known as the Smog Check program.
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Greeley Remote Sensing Pilot Program Final Report
This report evaluates how remote sensing technology can beused as a supplement or alternative to an inspection/maintenance (I/M) program.
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Table for Remote Sensing - Summary of RSD Studies
Remote Sensing - Summary of RSD Studies
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1995 Limited Maintenance Plan for nonclassifiable CO Nonattainment Areas
These documents provide guidance on maintenance plan submissions for certain moderate particulate matter (PM10) seeking redesignation to attainment.
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Guidance on Applicable Methodologies to Account for the Benefits of Infill in SIPs and Conformity Determinations
This document provides guidance regarding the use of the methodologies from ""Comparing Methodologies"" in preparing state implementation plans (SIP's) and transportation conformity determinations.
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A Matrix of EPA Guidance Documents for Developing and Quantifying Control Measures
This document provides a list of EPA guidance documents for developing and quantifying control measures.
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State Review Framework (SRF) - Missouri Final Reports
Details findings of the Missouri state review framework
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State Review Framework (SRF) - District of Columbia Final Reports
Details findings of the District of Columbia state review framework
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System Documentation for Onroad Heavy-Duty Vehicles in the Engines and Vehicles Compliance Information System (EV-CIS)
Use these files for the commercial trucks and buses module in EV-CIS.
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Extension of 2019 and 2020 Renewable Fuel Standard Compliance and Attest Engagement Reporting Deadlines
Compliance Deadline Extension of 2019 and 2020 Renewable Fuel Standard Compliance and Attest Engagement, EPA finalized modifications of certain compliance dates under the RFS program.
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2011 Commitment Letters for 2017-2025 Light-Duty National Program
The State of California and major automakers showed their support for a continued national program of light-duty GHG and CAFE standards by sending letters to the agencies in July 2011.
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2008 Amendments to Annex VI to the International Convention for the Prevention of Pollution from Ships (MARPOL)
Materials related to to the 2008 Amendments to Annex VI to the International Convention for the Prevention of Pollution from Ships (MARPOL).