S.L. 499.56 · Passenger Transport Services Regulations (S.L. 499.56)
S.L. 499.56 Art. 99Control document.
PART XIV
In the case of special regular services, the contract concluded between the carrier and the transport organiser, or a certified true copy of the contract, shall serve as the control document. However, the journey form shall be completed in the form of a monthly statement.