; (11) may provide services and facilities, at reasonable prices, to vessels operating in the Arctic; (12) if the United States portion of the revenue from the tolls charged to the users of any services provided under this section is applied solely towards the safety and environmental protection and response services to vessels operating on the Arctic Sea Routes as specified in paragraph (11), may participate with international entities in the ownership and operation of a tolling company, and may lease icebreakers, and enlist and return assets; (13) shall be credited with amounts received from any of the activities authorized under paragraphs (10) and (11); (14) shall publish charts of locations of places of refuge to be made readily available to all vessels voyaging north of the Bering Straight in the interest of ensuring vessel safety; and (15) shall carry out other functions considered relevant by the Secretary of Transportation, in conjunction with the Secretary of the Department in which the Coast Guard is operating, the Secretary of Defense acting through the Secretary of the Army, and the Secretary of State. 8. Bonds; issuance; maturity; redemption; interest