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

   1. (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;

   2. (b) Retrofitted:

      1. (A) If retrofitted prior to August 15, 2017, with best available exhaust control technology; or
      2. (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
   3. (c) Replaced with school buses manufactured on or after January 1, 2007.
2. (2) A school bus replaced under subsection (1)(c) of this section may not be used for transportation of any type.

[2009 c.631 §2; 2017 c.742 §12; 2024 c.43 §4]