Engine governors are being used basically to protect the vehicle engine and power take-off driven components as well as to maintain a proper operating rpm for maximum efficient use of these components. Controls presently being used with powered utility equipment have not been completely satisfactory.The use of fixed throttle controls, vacuum throttle controls, spinner type controls, and a combination of these types with power driven components is analyzed in detail. The spinner type control was found most effective for use with P.T.O. driven utility equipment. However, it appears that an engine speed control would do a better job than an engine governor.The advantage of the engine speed control is the simplicity of installation and maintenance as well as the ability to pre-set multiple speed settings with electrical connections for the various component engagement switches.