5. What Are the Testing and Initial Compliance Requirements?
An owner or operator of a new or existing boiler or process
heater must conduct performance tests (i.e. stack testing)
or an initial fuel analysis to demonstrate compliance
with any applicable emission limits. The applicable emission
limits and, therefore, the required performance tests
and fuel analysis are different depending on the subcategory
classification of the unit. Existing units in the small
solid fuel subcategory and existing units in any of the
liquid or gaseous fuel subcategories do not have applicable
emission limits and, therefore, are not required to conduct
stack tests or fuel analyses. More detail for specific
type units and combinations of control devices can be
found in the final rule or in the applicability flow
chart on the boiler
MACT rule web page.
An owner or operator of a new or existing boiler or process
heater must conduct performance tests (i.e. stack testing)
or an initial fuel analysis to demonstrate compliance
with any applicable emission limits. The applicable emission
limits and, therefore, the required performance tests
and fuel analysis are different depending on the subcategory
classification of the unit. Existing units in the small
solid fuel subcategory and existing units in any of the
liquid or gaseous fuel subcategories do not have applicable
emission limits and, therefore, are not required to conduct
stack tests or fuel analyses. More detail for specific
type units and combinations of control devices can be
found in the final rule or in the applicability flow
chart on the