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2020 Bronze Medal Award


Ms. Butcher, Ms. Warfield and Ms. Williams are recognized for their leadership of the U.S. National Work Group for Electric Vehicle Refueling and Submetering, which developed uniform legal metrology requirements adopted in 2019 by the 50 states for electric vehicle refueling and other submetered electricity sales.  These standards enable consumers to make informed value comparisons and purchasing decisions and provide charging equipment and electric vehicle manufacturers with guidance to jump-start the construction of a nationwide vehicle charging infrastructure.


Tina Gaver Butcher

Supervisory Physical Scientist
Physical Measurement Laboratory

Lisa Warfield

Weights & Measures Coordinator
Physical Measurement Laboratory

Juana Williams

Physical Scientist
Physical Measurement Laboratory