Conditionally Required Agency for the specified fare. Required if multiple agencies exist in agency.txt.

Required Currency code (e.g., "USD", "EUR").

Required Identifies a fare class.

Required When the fare must be paid.

• 0 = Paid on board
• 1 = Must be paid before boarding

Required Fare price in the currency specified by currencyType.

Optional Length of time in seconds before a transfer (or this fare) expires. When transfers=0, may indicate ticket validity duration or be empty.

Required Number of transfers permitted on this fare.

• 0 = No transfers
• 1 = One transfer
• 2 = Two transfers
• '' (empty) = Unlimited transfers