The recommended specification was updated to include the latest practices on the North American continent and the title was changed from a recommended specification to a "Recommended Practice for Preparation of Equipment Specifications. "Insofar as possible, the Practice has been made consistent with the ASME Performance Test CodePTC29-1965 and the draft of the corresponding IEC document.

The purpose of this practice is to recommend minimum performance characteristics and equipment relating to governors for controlling hydraulic turbines intended to drive electric generators and to aid in preparation of procurement specifications.