12.1 The short headings under each clause in these C onditions of Carriage are for convenience only and are not used to interpret the content s of the clauses.

12.2 These C onditions of Carriage are written in Chinese and translated into other language versions. When inconsistencies between the Chinese version and other language versions, the Chinese version shall prevail.

12.3 The rules for voluntary refunds and voluntary changes of domestic and international tickets and the transportation requirements for passengers with disabilities are subject to frequent changes. We have separately formulated relevant regulations, specifically the " Voluntary Refund and Change Rules of CA Domestic Tickets (2021 Version) " " Voluntary Refunds and Change Rules of CA International Tickets (2021 Version) " and " Beijing Airlines Transportation Regulations for the Disabled , Beijing Airlines Co., Ltd." , These documents are part of these C onditions of Carriage .