The Special Transport Add-on for Euro Truck Simulator 2 has 8 achievements.
Complete delivery of all oversize cargoes (requires Special Transport DLC)
Complete delivery of the Service Boat (requires Special Transport DLC)
Complete deliveries on all oversize routes in current map (requires Special Transport DLC)
Deliver at least 195 tons of oversized cargo in just 3 consecutive deliveries (requires Special Transport DLC)
Complete 3 consecutive oversize jobs without any damage (requires Special Transport DLC)
Complete delivery of the Silo cargo (requires Special Transport DLC)
Complete delivery of the Haul Truck Chassis (requires Special Transport DLC)
Deliver first oversize cargo (requires Special Transport DLC)