Manufacturing News
October 7, 2026
October 7, 2026 · National · Story 5 of 5
EPA Mercury Exemptions Reach Burns Harbor, and the Lawsuit Matters More
The EPA has granted presidential exemptions from the tightened mercury and air-toxics rules to roughly 200 facilities, and Cleveland-Cliffs' Burns Harbor mill in Northwest Indiana is among the beneficiaries of a parallel coke-oven exemption. Burns Harbor is the company's second-largest integrated steel plant. It is simultaneously fighting an August 2026 EPA petition over its IDEM air permit renewal, so federal relief and state permitting are pulling in opposite directions on the same site.
The EPA has granted presidential exemptions from the tightened mercury and air-toxics rules to roughly 200 facilities, and Cleveland-Cliffs' Burns Harbor mill in Northwest Indiana is among the beneficiaries of a parallel coke-oven exemption. Burns Harbor is the company's second-largest integrated steel plant. It is simultaneously fighting an August 2026 EPA petition over its IDEM air permit renewal, so federal relief and state permitting are pulling in opposite directions on the same site.
The litigation is the part worth tracking. Earthjustice argues 93% of U.S. coal capacity already met the stricter standard before exemptions were granted, which puts the relief overwhelmingly with the plants furthest out of compliance, and the exemption window carries no statutory cap on renewals. If the D.C. Circuit challenge filed in March 2026 goes against the process, suppliers who priced work against the exemption are the ones holding the timing risk.
For your morning huddle
- Q
If Burns Harbor's federal exemption and its state permit dispute resolve in conflicting directions, do we have a contingency for Indiana steel or coke suppliers facing sudden compliance deadlines anyway?
It puts the timing risk on you. The exemption has no cap on renewals and the D.C. Circuit challenge is live, so an Indiana steel or coke supplier could face a compliance deadline the federal relief appeared to remove.
Briefing note
- Impact
- Deep research identifies Cleveland-Cliffs' Burns Harbor mill in Northwest Indiana (the company's second-largest U.S. integrated steel plant) among the named beneficiaries of a parallel coke-oven exemption, even as the same facility separately fights an August 21, 2026 EPA petition over an inadequate IDEM air permit renewal, creating a dual-track compliance gray zone where federal relief and state permitting pull in opposite directions. The bigger legal fight matters more than the headline: Earthjustice's suit argues 93% of U.S. coal capacity already met the stricter standard before exemptions were granted, meaning relief went overwhelmingly to the 7% of plants furthest out of compliance, and the exemption window has no statutory cap on renewals.
- Watch
- The D.C. Circuit litigation filed March 30, 2026 challenging the exemption process, and any ruling on the pending EPA petition tied to Cleveland-Cliffs Burns Harbor's IDEM air permit.
Sources
From the brief, October 7, 2026
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- Wisconsin's Suppliers Are Cashing Indiana's Data Center Checks
- EPA Mercury Exemptions Reach Burns Harbor, and the Lawsuit Matters More
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