Senior person rate Rate class applies to senior persons. Basic Code specifying that the rate or tariff is a basic one. Specific commodity rate Code specifying the specific commodity rate. Teenager rate Rate class applies to teenagers. Child rate Rate class applies to children. Adult rate Rate class applies to adults. Rate per kilogram Code specifying the rate per kilogram. Minimum charge rate Code specifying the minimum charge rate. Normal rate Code specifying the normal rate. Quantity rate Code specifying the quantity rate. Class rate (Reduction on normal rate) Code specifying the reduction on normal rate. Class rate (Surcharge on normal rate) Code specifying the surcharge on normal rate.