Mass Transit Districts ORS 267.510 Definitions for ORS 267 Text Annotations As used in ORS 267.510 (Definitions for ORS 267) to 267.650 (Finance elections): (1)“District” means a transportation district established under ORS 267.510 (Definitions for ORS 267) to 267.650 (Finance elections). (2)“System” means the equipment, facilities and other property constructed, erected or acquired by the district and to be used in the transport of passengers. [1974 c.9 §1]