Zakko and ryoko (imperial tomb guard) which was one of Goshiki no sen (the base people of five colors) were similar in terms of legal status, but are different in that zakko, as with citizens, were obliged to be involved in giso (to stockpile grain in case of famine).
五色の賎の1つである陵戸と似た法的身分であるが、雑戸には公民と同様に義倉負担の義務を有するところが陵戸とは異なっている。