Fun fact: The Massachusetts Department of Transportation briefly switched over to mandating the metric system for its engineering guides, then switched back i

Fun fact: The Massachusetts Department of Transportation briefly switched over to mandating the metric system for its engineering guides, then switched back in 2003. https://www.mass.gov/doc/use-of-the-english-system-of-measurements/download https://www.mass.gov/doc/use-of-the-english-system-of-measur...