Using energetic particle data from the Helios 1 spacecraft, we have studied the particles associated with 26 coronal mass ejection (CME)/shock pairs. We divided the particle events into four classes on the basis of the relative intensities of their prompt and shock-associated components. Events in group 1 have strong prompt and shock components and are associated with energetic CMEs originating, most commonly, with central meridian flares. Group 2 events characteristically have strong prompt components and weaker shock components and are associated with western hemisphere (i.e., favorably located) flares. Group 3 consists of events with absent prompt components and strong shock components; the CMEs probably originate in disappearing filament events near central merdian. Group 4 events show no particle enhancements and are associated with slow CMEs and slow shocks. This study supports our previous work in which solar energetic particles events were discussed in terms of a solar component and an interplanetary shock component and where the shock effects depend on the connection longitude of the observer. ¿ American Geophyscial Union 1990