Emission-control system

Emission-control system means any device, system, or element of design that controls or reduces the emissions of regulated pollutants from an engine.

Source

40 CFR § 1048.801

---

Scoping language

The following definitions apply to this part. The definitions apply to all subparts unless we note otherwise. All undefined terms have the meaning the Act gives to them. The definitions follow:

---

Is this correct? or