Does a 1985 Chevrolet G30 van need a catalytic converter?

Yes, a 1985 Chevrolet G30 van is required to have a catalytic converter if it was originally equipped with one. Vehicles manufactured after 1975 in the United States are mandated to have catalytic converters to help reduce harmful emissions. However, if the van has been modified or is being used in a specific context (like certain racing applications), regulations may differ. Always check local emissions laws for compliance.