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Federal rules and notices from the public comment record, analyzed continuously.
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Air Quality Modeling for the HD 2027 Proposal: Draft Technical Support Document
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Memo Incorporating Dockets Heavy-Duty Rule
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Final Technical Support Document Nonconformance Penalties for 2004 Highway Heavy-Duty Diesel Engines August 2002 EPA-420-R-02-021
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Uncertainty Dominates Pre-Buy Discussions Ahead of 2027 - TT
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Technical Support Document Nonconformance Penalties for On-highway Heavy-duty Diesel Engines August 2012 EPA-420-R-12-014
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Goodbye, 2027 Truck Prebuy Heavy Duty Trucking
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Analysis of Heavy-Duty Vehicle Sales Impacts Due to New Regulation
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Redline Version of EPA’s Proposed Regulation for Amendments and Nonconformance Penalties for Model Year 2027 and Later Heavy-Duty Highway Engines and Amendments to Inducement Provisions for SCR-Equipped Diesel Engines
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Regulatory Impact Analysis: Control of Air Pollution from New Motor Vehicles: Heavy-Duty Engine and Vehicle Standards
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Response to Comments: Control of Air Pollution from New Motor Vehicles Heavy Duty Engine and Vehicle Standards
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2020 AirToxScreen: Assessment Results US EPA
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EPA Green Book Data Download Data Dictionary
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