Wheel of Clean Air: Indiana's VOC Fix
Published Date: 2/27/2026
Proposed Rule
Summary
The EPA wants to approve new air pollution rules for Keystone Automotive in Indiana, letting them use a special control device to reduce harmful chemicals from their wheel cleaning process. This change affects Keystone’s operations and aims to keep the air cleaner without extra costs. People have until March 30, 2026, to share their thoughts on this plan.
Analyzed Economic Effects
3 provisions identified: 3 benefits, 0 costs, 0 mixed.
Site‑Specific Oil Cover Approval
The EPA proposes to approve a change allowing Keystone Automotive to use a mineral oil cover (Aquastrip Fume Seal) at least one inch thick as an equivalent control for its heated degreasing tank that uses an N‑Methyl Pyrrolidone (NMP) and monoethanolamine (MEA) solvent blend. This approval would let Keystone avoid raising the tank freeboard to 108 inches (9 feet) or installing other capital controls that IDEM said are cost‑prohibitive.
No Adverse Air Quality Impact Found
The EPA concurs with Indiana's demonstration under Clean Air Act section 110(l) that using the oil cover will control VOC emissions from Keystone's degreasing tank and will not interfere with air quality standards or reasonable further progress. The EPA states the oil cover reduces solvent evaporation and expects no adverse impact on air quality from this SIP revision.
No New Federal Burdens on Small Businesses
The EPA says this action merely approves Indiana's Commissioner's Order 2025‑Air‑01 (signed February 19, 2025) into the State Implementation Plan and does not impose requirements beyond state law. The EPA also certified the action as not having a significant economic impact on a substantial number of small entities.
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Key Dates
Department and Agencies
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