Regulations Governing the Handling of Mail Article 8

If a letter sheet contains any extra objects, the Chinese wording for letter sheet on the cover should be crossed off and it should be posted as a letter instead.If an aerogramme contains any extra objects and is therefore returned to the sender for collection of the difference in postage between an aerogramme and a letter, then the words for aerogramme on the cover, whether printed in Chinese or any other languages commonly used in international mail, should be crossed off and the item posted as an airmail letter instead. When it can not be returned to the sender, the words for aerogramme on the cover, whether printed in Chinese or any other languages commonly used in international mail, should be crossed off, and the item should be delivered by means of surface transportation.