Q624. Should self-propelled workover equipment be included for reporting GHG emissions under Subpart W?

A624. If the power take-off for operating the truck mounted workover rig is the truck wheel drive engine (i.e. a transmission option to transfer the truck wheel drive shaft to powering the rig generator or wench or other rig equipment) then yes, this workover rig arrangement is “self propelled.” and not required to be reported.  However, if the truck has a separate engine not connected to the drive wheels that powers the workover rig equipment, then it is “non-self propelled” and must be included in your report.