Regulatory Support

Boiler MACT

NCASI technical resources related to the Boiler MACT rulemakings are available here. Notable NCASI work related to this topic includes an assessment of the performance of PM CEMS on wood-fired boilers, summary of Detection and Quantitation limits for mercury (Hg) measurement, guidance on fuel sampling and analysis and summary contaminant comparisons for non-hazardous secondary materials (NHSM) receiving the categorical exemption. NCASI has also conducted multiple workshops and webinars on planning and executing performance tests, specifically on identifying worst-case representative operating scenarios for multi-fuel fired boilers.