retrofit technology
Defined in 1 place of the United States Code.
The term “retrofit technology” means a particulate filter or other emissions control equipment that is verified or certified by the Administrator or the California Air Resources Board as an effective emission reduction technology when installed on an existing school bus.
Source
- 2005–present42 U.S.C. § 16091AThe Public Health and Welfare · Clean school bus program1 · under this section