| http://www.w3.org/ns/prov#value | - ADVERTISEMENTProterra describes itself as the ???the only U.S.-based manufacturer of EV transit buses??? and ???the only manufacturer to have buses in revenue service in the United States or to have passed stringent federally-required Altoona testing.??? LaHood has associated with other transportation groups since leaving the Obama administration last year, including most recently the Washington,
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