Linn County Air Quality Division
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Boilers and Process Heaters

(Major and Area Sources)

Common Links (5D and 6J)

General Information

Major Source Boilers and Process Heaters (5D)

Note: Facilities that already submitted an initial notification for the Major Source Boiler MACT promulgated on March 21, 2011, are not required to submit another initial notification at this time. Facilities that have not submitted an initial notification since the “old” Boiler MACT (promulgated in 2004) will need to submit a new notification.

Area Source Boilers (6J)

The Area Source Boiler NESHAP does not apply to process heaters, and it does not apply to “gas-fired boilers,” as defined in 6J:
Gas-fired boiler includes any boiler that burns gaseous fuels not combined with any solid fuels and burns liquid fuel only during periods of gas curtailment, gas supply interruption, startups, or periodic testing on liquid fuel. Periodic testing of liquid fuel shall not exceed a combined total of 48 hours during any calendar year.
General Information