Solid waste
(9) Solid waste means construction and demolition debris; municipal solid waste; household waste; commercial and retail waste; institutional waste; sludge; industrial waste; and other solid waste, as determined appropriate by the Board, but not waste generated by a rail carrier during track, track structure, or right-of-way construction, maintenance, or repair (including railroad ties and line-side poles), or waste generated as a result of a railroad accident, incident, or derailment.