/topics/news/b/announcements/posts/bfpo-mail---cn22-23-commercial-invoiceBFPO Services Update Since the introduction of the new International Mail Regulations on 1 January 2021, BFPO have been advising customers that all BFPO mail must have a valid customs declaration (CN22/23/commercial invoice) attached to the item.&nbsen-USTelligent Community 12