5. GRPE – VPSD. (Vehicle Propulsion System Definitions). GFV provided VPSD with definitions of gaseous fuel definitions (Document VPSD-06-08 (GFV 38-02)) and Mr. Albus, Chairman of VPSD has provided some comments and reaction. The language discussed is highlighted from the original with Mr. Albus’s comments. Mr. Albus’s comments all were discussed and preferred revisions were made as follows (paragraphs 4-7, below). A new GFV definitions document will be prepared for the VPSD that incorporates the debated changes. The bi-fuel and dual fuel definitions annotated in red in this text is what was returned with comments from the VPSD. Below each is the result of the GFV discussion with the preferred option returned to VPSD (Document GFV-40-03).