ORS 468A.796: School buses; repowering or retrofitting of engines; replacement.

(1) All school buses powered by diesel engines operated in Oregon must, by January 1, 2026, be:

      (a) Repowered with an engine meeting 2007 fine particulate matter federal exhaust emission standards for diesel heavy-duty engines as set forth in 40 C.F.R. 86.007-11;

      (b) Retrofitted:

      (A) If retrofitted prior to August 15, 2017, with best available exhaust control technology; or

      (B) If retrofitted on or after August 15, 2017, with exhaust controls meeting 2007 fine particulate matter federal exhaust emission standards for diesel heavy-duty engines as set forth in 40 C.F.R. 86.007-11; or

      (c) Replaced with school buses manufactured on or after January 1, 2007.

      (2) A school bus replaced under subsection (1)(c) of this section may not be used for transportation of any type.