CREATE TABLE table_24451 ("Chassis code" CLOB, "Model no." CLOB, "Production years" CLOB, "Drivetrain" CLOB, "Transmission" CLOB, "Engine type" CLOB, "Engine code" CLOB, "Region ( s ) " CLOB)

Name the model number for usf46
SELECT "Model no." FROM table_24451 WHERE "Chassis code" = 'USF46'
SELECT "Model no." FROM "table_24451" WHERE "Chassis code" = 'USF46'