Where the director has adopted a state program, a source with potential to emit (with enforceable or inherent controls) 10 tons per year of any hazardous air pollutant or 25 tons of any combination, or a source in a designated category emitting 1 ton or 2.5 tons combined, may not begin construction or modification without a permit or revision imposing maximum achievable control technology (larger sources) or hazardous air pollutant reasonably available control technology (designated categories), above de minimis amounts. The owner may instead show by a scientifically sound risk management analysis, filed with the application, that the technology is not needed to avoid adverse effects to human health or the environment, and may seek the same variance from a general permit. Crustal particulate from natural or earth-moving activities is excluded from the thresholds.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.