技术规范的这一部分将ID标签的表示定义为打印在项目背面的区域R1中的荧光墨水中的62位条形无条形码（BNB-62）。 BNB-62编码是本技术规范支持的两种编码规范之一），用于在区域R1中打印ID标签，另一种是在CEN/TS 15844-2中规定的BNB-78。 注1:打印在项目前面的4状态代码的表示在CEN/TS 15844-4中有关单位和CEN/TS 15844-5的小写字母。 BNB-62编码仅授权三家发行人使用:邮政（爱尔兰），加拿大邮政和USPS。在收到的物品上，只能发生在加拿大，爱尔兰或美国的邮件上。希望在区域R1中应用ID标签的其他发行者需要使用CEN/TS 15844-2中定义的BNB-78编码。 注2:在区域R1中编码的ID标签由万国邮联信件条例[2]的第RL条123要求符合UPU标准S18，并由相关CEN/TS 15844进行。这仅支持区域中的两个编码R1，即如在CEN/TS 15844-2中定义的BNB-78和如本文所定义的BNB-62。后者被授权仅由上述三家发行人继续使用。其中ID标签

This part of the Technical Specification defines the representation of ID-tags as a 62-position bar-no-bar code (BNB-62) printed in fluorescent ink in area R1 on the reverse side of items. BNB-62 encoding is one of two encoding specifications supported by this Technical Specification ) for the printing of ID-tags in area R1, the other being BNB-78, which is specified in CEN/TS 15844-2. NOTE 1 Representation in the form of a 4-state code printed on the front of the item is covered in CEN/TS 15844-4 for flats and CEN/TS 15844-5 for small letters. BNB-62 encoding is authorised for use only by three issuers: An Post (Ireland), Canada Post and USPS. It should be encountered, on incoming items, only on mail items which originated in Canada, Ireland or the United States. Other issuers wishing to apply ID-tags in area R1 are required to use the BNB-78 encoding defined in CEN/TS 15844-2. NOTE 2 ID-tags encoded in area R1 are required by article RL 123 of the UPU Letter Post Regulations [2] to be compliant with UPU standard S18 - and by this with the related CEN/TS 15844. This supports only two encodings in area R1, namely BNB-78 as defined in CEN/TS 15844-2 and BNB-62 as defined herein. The latter is authorised for continued use only by the three issuers mentioned above. Where ID-tags are used, and are applied in area R1 on the reverse side of letter mail items of size up to and including C5, the use of BNB-78 encoding is mandatory for all other issuers. NOTE 3 BNB-62 encoding is not considered suitable for use on flats. CEN/TS 15844-4 defines a 4-state encoding which may be used for this purpose.