The University has an air permit for the steam-generating boilers in the Central Plant.
We also claim several types of general air emission sources that are allowed by the
TCEQ without the need for a specific permit. These are called permits by rule (PBRs)
and the University's most common PBR emission source is emergency power generators
found throughout the campus. EHL tracks the use of emergency generators on a 12 month
rolling period. The emergency electric generators are operated under permit by rule
authorization 106.511. Other permits such as bench-scale analytical work covers much
of the work performed in research labs.