Ammonia as a Motor Vehicle Engine Fuel from a Weights and Measures Perspective


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California Law requires:

— All motor vehicle fuel must have a consensus organization fuel quality standard. In absence of such a standard, a user may obtain a “Developmental Engine Fuel Variance” for the purpose of developing a consensus organization standard.
— Devices that measure for purposes of charging are type approved for product delivered and sealed by a Weights and Measure official.
— Fuel dispensers are labeled in accordance to State and Federal requirements.
— Unit of sale be in dollars per gallon or liter.

The author provides an overview of these areas and information on how to obtain a developmental engine fuel variance; what is needed to develop a consensus organization standard; device type approval process; and the current labeling requirements.