BPT. Emissions from existing sources undergoing renewal of a minor source license shall be deemed to be receiving best practical treatment if those emissions are being controlled by pollution control apparatus that has been approved by the Department and which was installed less than 15 years prior to the date of license application approval, or an acceptable best practical treatment analysis shows that those emissions are being controlled in a manner consistent with emission controls commonly used in sources of similar age and design in similar industries. BPT may require the use of additional instrumentation, operating practices, best management practices, fuel content requirements, good combustion techniques, automated process controls, upgrading of component parts, emissions testing, requirements for continuous emission monitors, maintenance programs for air pollution control equipment, or recordkeeping to demonstrate performance of air pollution control systems or other mitigating measures.
For emissions from existing sources for which BPT was determined less than 15 years prior to the date of license application acceptance by the Department, the applicant shall submit a summary of the pollution control apparatus for those emission sources.
If BPT was determined 15 years or more from the date of license application acceptance by the Department, the applicant must demonstrate that each emission unit is receiving BPT and such demonstration shall consider the emission limit for which the air pollution control system was designed, the emission limitations adopted by the Department and in effect at the time of submission of an application for renewal, as well as the reliability, age, and life expectancy of the air pollution control system.
For some existing sources, a simple certification attesting the source is meeting BPT may be submitted for Department approval.
BPT shall not require the use of a lower sulfur content fuel unless a lower sulfur fuel is required to comply with the applicable emissions standards or applicable ambient air quality standards.
BPT shall not force replacement of existing air pollution control equipment solely on the basis that more efficient or reliable air pollution control equipment is available at the time of renewal. However, BPT may require replacement with more efficient or reliable air pollution control equipment under the following conditions:
The following elements shall be included in the license:
06-096 C.M.R. ch. 115, § 3