Section 40-366 - Names of parties to joint schedule required on schedule; filing required by only one party with concurrence of other partiesA. The names of the several public service corporations which are parties to any joint tariff, rate, fare, toll, contract, classification or charge shall be specified in each schedule showing such items.B. Unless otherwise ordered by the commission, a schedule showing a joint tariff, rate, fare, toll, contract, classification or charge need be filed with the commission by only one of the parties to it, provided that there is also filed with the commission, in the form the commission requires, a concurrence in the joint tariff, rate, toll, fare, contract, classification or charge by each of the other parties thereto.