(a) The contracting states acknowledge that each state must refrain from resorting to the use of weapons against civil aircraft while in flight, and that, in the event of an interception, the lives of persons on board the aircraft and the safety of the aircraft must not be endangered. This judgment shall not be interpreted as modifying in any way the rights and obligations of states as stipulated in the Charter of the United Nations.
(b) The contracting states acknowledge that each state has the right, in exercising its sovereignty, to require any civil aircraft flying over its territory without authorization, or if there are reasonable grounds to conclude that the aircraft is being used for purposes inconsistent with the objectives of this agreement, to land at a specified airport. The state may also issue any other instructions to that aircraft to put an end to such violations. For this purpose, the contracting states may resort to any appropriate means consistent with the relevant rules of international law, including the relevant provisions of this agreement, specifically paragraph (a) of this article, and each contracting state agrees to publish its applicable regulations regarding the interception of civil aircraft.
(c) Every civil aircraft shall comply with any order issued in accordance with paragraph (b) of this article. For this purpose, each contracting state shall incorporate all necessary provisions in its laws or national regulations to make this compliance mandatory for any civil aircraft registered in that state or operated by an operator whose principal place of business or permanent residence is in that state. Each contracting state shall impose severe penalties for any violation of those laws or regulations and refer the case to its competent authorities in accordance with its laws or regulations.
(d) Each contracting state shall take appropriate measures to prohibit the intentional use of any civil aircraft registered in that state or operated by an operator whose principal place of business or permanent residence is in that state for any purpose inconsistent with the objectives of this agreement. This judgment does not affect paragraph (a) or contravene the provisions of paragraphs (b) and (c) of this article.