19 Va. Admin. Code § 30-70-310
C. Inspect for and reject if:
2. Any of the essential parts of the pollution control system or devices on vehicles manufactured for the model year 1973 or for subsequent model years have been removed, rendered inoperable or disconnected. This includes any belt, valve, pump, hose line, cap, canister, catalytic converter and the restrictor in the gasoline tank filler neck on vehicles required to use unleaded fuel.
NOTE: In order to determine if a motor vehicle was originally equipped with emissions control equipment, refer to the vehicle's emissions control information label which is usually located in the engine compartment.
3. The emission control system or device on motor vehicles manufactured for the model year 1973 or for subsequent model years is not comparable to that designed for use upon the particular vehicle as standard factory equipment.
b. Used converters - U/XX/YYYY/ZZZZ
N - New converter designation
U - Used converter designation
XX - Manufacturer code issued by EPA
YYYY - Numerical designation of vehicle application
ZZZZ - Month and year of manufacture (i.e. - 0188 for January, 1988)
Any new or used after market catalytic converter installed on a vehicle after December 31, 1987, shall meet and be installed in accordance with specifications established by the Environmental Protection Agency. A catalytic converter so installed shall be identified with a visible, permanent, nondestructible label or stamp which will identify the manufacturer, vehicle application and month and year of manufacture. The label shall be in accordance with the following format:
§ 46.2-1165 of the Code of Virginia.
Derived from VR545-01-07 § 31, eff. May 1, 1990; amended, Virginia Register Volume 10, Issue 8, eff. February 9, 1994; Volume 28, Issue 24, eff. August 1, 2012; Volume 32, Issue 24, eff. October 3, 2016.