Science & Technology
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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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PM Hot-spot Modeling: Lessons Learned in the Field
This TRB Sunday Workshop slide presentation presents PM HOt-spot Modeling: Lessons Learned in the Field.
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Overview of the PM Hot-spot Requirements and Guidance for Transportation Conformity
This slide presentation is an Overview of the PM Hot-spot Requirements and Guidance for Transportation Conformity.
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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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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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System Documentation for Heavy-Duty In-Use Testing Program
Documents for heavy-duty in-use testing.
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EPA's Bristol Bay Assessment
EPA's scientific assessment of the potential impact of large-scale mining operations on the Bristol Bay watershed ecosystem.
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Final National Level Listed Species Biological Evaluation for Methomyl
EPA has drafted Biological Evaluations (BEs) for two additional pilot chemicals: carbaryl, and methomyl. The draft BEs are based on interim methods developed in conjunction with FWS, NMFS and USDA in response to the National Academy of Science report.
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Final National Level Listed Species Biological Evaluation for Carbaryl
EPA has drafted Biological Evaluations (BEs) for two additional pilot chemicals: carbaryl, and methomyl. The draft BEs are based on interim methods developed in conjunction with FWS, NMFS and USDA in response to the National Academy of Science report.
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Virtual Beach 3.0.7 User Guide
Virtual Beach version 3 (VB3) is a decision support tool that constructs site-specific statistical models to predict fecal indicator bacteria (FIB) concentrations at recreational beaches.