1 Unless expressly provided otherwise, this chapter applies to ships operating in polar
                        waters, certified in accordance with chapter I. 
                     
                     
                     
                     
                     2 Ships constructed before 1 January 2017 shall meet the relevant requirements of the
                        Polar Code by the first intermediate or renewal survey, whichever occurs first, after 1
                        January 2018. 
                     
                     
                     
                     
                     3 In applying part I-A of the Polar Code, consideration should be given to the additional
                        guidance in part I-B of the Polar Code. 
                     
                     
                     
                     
                     4 This chapter shall not apply to ships owned or operated by a Contracting Government and
                        used, for the time being, only in Government non-commercial service. However, ships
                        owned or operated by a Contracting Government and used, for the time being, only in
                        Government non-commercial service are encouraged to act in a manner consistent, so far
                        as reasonable and practicable, with this chapter. 
                     
                     
                     
                     
                     5 Nothing in this chapter shall prejudice the rights or obligations of States under
                        international law.