Art. 64. Deposits of coal shall be established for supplying the steamers which navigate the Amazon rivers, and for others who care to use them, in the following places, or in others which be shown to be more convenient: Belém (Pará), Cametá, Breves, Chaves, Mazagão, Gurupá, Souzel, Prainha, Sautarem, Ponta Nova Brasileira, Obidos, Parintius, Itacoatiara, Manáos, Carvoeiro, Moreira, Santa Izabel do Rio Negro, Carmo do Rio Branco, Caracarahy, Boca do Canumã, Baetas, Boca do Rio Machado, Boca do Purús, Campina, Nova Olinda, Canutama, Cachoeira de Hyutanahan, Boca do Pauhiny, Boca do Acre, Rio Branco, Seuna Madureira, Coary, Teffé, Boca do Juruá, Juruapeca, Mearary, Boca do Tarauacá, Cruzeiro do Sul, Boca do Jutahy, S. Paulo de Olivença, Benjamin Constant and Santo Antonio de Maripi. Art. 65. There shall be floating deposits, so that they can be moved from one place to another, as the growth of navigation in this or that place may require; they shall have sufficient capacity for the movement of steamers at the station they are serving and passes modern apparatus for discharging the coal, which will reduce to a minimum the raising of dust, and load the steamers as quickly as possible. Art. 66. At points where it may be thought necessary, the deposits shall be provided with tanks for fuel oil, which can be placed on the platform with coal, or on separate floating platforms. Art. 67. The establishment of the deposits and the business of furnishing fuel to the steamers, shall be by contract after a public bidding and signed by the Minister of Agriculture. Art. 68. The floating material for the depositories and the fuel imported shall be free of all import duties, including the fees. The fees in the custom houses shall be ordered through a requisition from the Minister of Agriculture, from whom the contracting party shall ask it, for each shipment, with the necessary data. Art. 69. The fuel imported by the corporation can only be sold for river navigation service. Art. 70. The maximum prices at which the party can sell fuel to steamers, shall be according to tables approved annually by the Minister. These may be altered during the year, when so necessary in the opinion of the Government. Art. 71. The contracting party shall not be subject to payment of any state or municipal duties, because the object is the public federal service. Art. 72. In places where the party has and the Government has not deposits of fuel, to him shall be given the preference for furnishing the quantity necessary for the national vessels of war, at the prices received when supplying the vessels of individuals.