Title 42 › CHAPTER 92 — POWERPLANT AND INDUSTRIAL FUEL USE › SUBCHAPTER III — EXISTING FACILITIES › Part B — Exemptions › § 8352
Grants permanent exceptions to the fuel-use bans for powerplants when specific conditions are met. The Secretary must allow use of natural gas or petroleum if the plant shows that, after trying in good faith, a reliable supply of coal or other fuels of the needed quality will not be available at a cost that does not substantially exceed the cost of using imported petroleum over the plant’s remaining life, or if site limits or environmental rules prevent using coal. A plant already exempt under subsection (g) cannot get this same exemption. The Secretary may also grant exemptions if state or local rules (like building codes or zoning) make coal use infeasible and no other exemption fits, or if a cogeneration plant shows it cannot get the economic benefits without gas or petroleum (the order must state the reason). Exemptions must be given for plants using small mixes of gas or petroleum with coal when the fossil fuel share does not exceed the minimum needed for reliable, reasonably efficient operation under the Secretary’s rules; the Secretary can allow a higher share when mixed with certain synthetic fuels. Exemptions must be granted for plants kept only for emergencies. The Secretary must grant exemptions for peakload plants if they run only at peak times, denying relief would harm reliability, and changing the plant to comply is technically infeasible or unreasonably expensive. The Secretary may grant petroleum use exemptions for intermediate-load plants if the EPA or state agency certifies coal would cause or add to air quality standard violations, the plant only replaces equivalent capacity of existing gas or petroleum plants owned by the same owner, it will remain an intermediate-load plant, its net fuel heat input stays at or below 9,500 Btu per kilowatt-hour for its remaining life, and it can use synthetic fuels. The Secretary will review and end such exemptions if suitable synthetic fuel becomes available. The Secretary must allow natural gas use for plants designed to burn less than 250 million Btu per hour that were baseload on April 20, 1977 and cannot burn coal without major modification or big capacity loss; that exemption only covers certain earlier prohibitions and rules in effect before January 1, 1990. The Secretary must allow liquefied natural gas if the EPA or state agency certifies coal use would cause or contribute to a violation of national air quality standards and coal would not meet environmental rules.
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The Public Health and Welfare, Source: USLM XML via OLRC
Legislative History
Reference
Citation
42 U.S.C. § 8352
Title 42, The Public Health and Welfare
Last Updated
Sep 22, 2026
Release point: 119-110