Texas Administrative Code
Title 30 - ENVIRONMENTAL QUALITY
Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY
Chapter 114 - CONTROL OF AIR POLLUTION FROM MOTOR VEHICLES
Subchapter I - NON-ROAD ENGINES
Division 3 - NON-ROAD LARGE SPARK-IGNITION ENGINES
Section 114.420 - Definitions
Current through Reg. 50, No. 13; March 28, 2025
Unless specifically defined in the TCAA or in the rules of the commission, the terms used by the commission have the meanings commonly ascribed to them in the field of air pollution control. In addition to the terms which are defined by the TCAA, the following words and terms, when used in this division, shall have the following meanings, unless the context clearly indicates otherwise.
(1) The definitions found in Title 13, California Code of Regulations, Chapter 9, §2431, concerning Definitions, as effective on November 18, 1999, are hereby incorporated by reference.
(2) Non-road, large spark-ignition (LSI) engine - Any engine that produces a gross horsepower (hp) of 25 hp or greater, or is designed (e.g. through fueling, engine calibrations, valve timing, engine speed modifications, etc.) to produce 25 hp or greater. For engine families which have models at or greater than 25 hp, as well as models below 25 hp, only the models at or above 25 hp are considered LSI engines. The engine operating characteristics are significantly similar to the theoretical Otto combustion cycle, with the primary means of controlling power output being the limit on the amount of air that is throttled into the combustion chamber of the engine. LSI engines or alternate fuel-powered LSI internal combustion engines are designed for, but not limited to, powering forklift trucks, sweepers, generators, industrial equipment, and other miscellaneous applications.
(3) New non-road, large spark-ignition (LSI) engine - Non-road, LSI model year 2004 and subsequent engines, and all equipment and vehicles that use such an engine.
