That it shall be the duty of the board, in coöperation with the Secretary of War, with the object of promoting, encouraging, and developing ports and transportation facilities in connection with water commerce over which it has jurisdiction, to investigate territorial regions and zones tributary to such ports, taking into consideration the economies of transportation by rail, water and highway and the natural direction of the flow of commerce; to investigate the causes of the congestion of commerce at ports and the remedies applicable thereto; to investigate the subject of water terminals, including the necessary docks, warehouses, apparatus, equipment, and appliances in connection therewith, with a view to devising and suggesting the types most appropriate for different locations and for the most expeditious and economical transfer or interchange of passengers or property between carriers by water and carriers by rail; to advise with communities regarding the appropriate location and plan of construction of wharves, piers, and water terminals; to investigate the practicability and advantages of harbor, river, and port improvements in connection with foreign and coastwise trade; and to investigate any other matter that may tend to promote and encourage the use by vessels of ports adequate to care for the freight which would naturally pass through such ports: Provided, That if after such investigation the board shall be of the opinion that rates, charges, rules, or regulations of common carriers by rail subject to the jurisdiction of the Interstate Commerce Commission are detrimental to the declared object of this section, or that new rates, charges, rules, or regulations, new or additional port terminal facilities, or affirmative action on the part of such common carriers by rail is necessary to promote the objects of this section, the board may submit its findings to the Interstate Commerce Commission for such action as such commission may consider proper under existing law.

Sec. 9.

That if the terms and conditions of any sale of a vessel made under the provisions of this Act include deferred payments of the purchase price, the board shall require, as part of such terms and conditions, that the purchaser of the vessel shall keep the same insured (a) against loss or damage by fire, and against marine risks and disasters, and war and other risks if the board so specifies, with such insurance companies, associations or underwriters, and under such forms of policies, and to such an amount, as the board may prescribe or approve; and (b) by protection and indemnity insurance with such insurance companies, associations, or underwriters and under such forms of policies, and to such an amount as the board may prescribe or approve. The insurance required to be carried under this section shall be made payable to the board and/or to the parties as interest may appear. The board is authorized to enter into any agreement that it deems wise in respect to the payment and/or the guarantee of premiums of insurance.

Sec. 10.

That the board may create out of net revenue from operations and sales, and maintain and administer, a separate insurance fund, which it may use to insure in whole or in part, against all hazards commonly covered by insurance policies in such cases, any interest of the United States (1) in any vessel, either constructed or in process of construction, and (2) in any plants or materials heretofore or hereafter acquired by the board or hereby transferred to the board.

Sec. 11.

That during a period of five years from the enactment of this Act the board may annually set aside out of the revenues from sales and operations a sum not exceeding $25,000,000, to be known as its construction loan fund, to be used in aid of the construction of vessels of the best and most efficient type for the establishment and maintenance of service on steamship lines deemed desirable and necessary by the board, and such vessels shall be equipped with the most modern, the most efficient and the most economical machinery and commercial appliances. The board shall use such fund to the extent required upon such terms as the board may prescribe to aid persons, citizens of the United States, in the construction by them in private shipyards in the United States of the foregoing class of vessels. No aid shall be for a greater sum than two-thirds of the cost of the vessel or vessels to be constructed, and the board shall require such security, including a first lien upon the entire interest in the vessel or vessels so constructed as it shall deem necessary to insure the repayment of such sum with interest thereon and the maintenance of the service for which such vessel or vessels are built.

Sec. 12.

That all vessels may be reconditioned and kept in suitable repair and until sold shall be managed and operated by the board or chartered or leased by it on such terms and conditions as the board shall deem wise for the promotion and maintenance of an efficient merchant marine, pursuant to the policy and purposes declared in sections 1 and 5 of this Act; and the United States Shipping Board Emergency Fleet Corporation shall continue in existence and have authority to operate vessels, unless otherwise directed by law, until all vessels are sold in accordance with the provisions of this Act, the provision in section 11 of the "Shipping Act, 1916," to the contrary notwithstanding.

Sec. 13.