What is the proper entry in BAR 97 EIS if all components of an emissions control system are connected but physically altered?

When all components of an emissions control system are connected but have been physically altered, the appropriate entry in the Bureau of Automotive Repair (BAR) 97 Emissions Inspection System (EIS) is "Modified." This designation indicates that while the components are present and connected, they have undergone changes that could affect their performance and effectiveness in controlling emissions.

Labeling the system as "Modified" provides a clear understanding that the emissions control system is not in its original state, which is critical information for evaluating compliance with emissions standards. This reflects a modification that may impact the overall functionality and efficiency of the emissions control system.

On the other hand, categorizing it as "Installed" would imply everything is as it should be, while "Missing" would suggest that components are absent. The term "Functional" would inaccurately imply that the system operates as intended without taking into account the physical alterations made to the components.