# COMAR Title 26 — Department of the Environment

## Subtitle 11 — Air Quality

### Chapter 29 — Control of NO

#### Regulation .01 Definitions.

*COMAR 26.11.29.01*

A. In this chapter, the following terms have the meanings indicated.

B. Terms Defined.

  (1) “Natural gas pipeline compression station” means a main line natural gas transmission station, consisting of one or more internal combustion engines, used to compress natural gas, thereby sustaining flow of natural gas through the pipeline.

  (2) “Parametric optimization” means the adjustment of an internal combustion engine, such as adjustment of the air-to-fuel ratio, that maximizes engine efficiency and minimizes emissions.