On two symbols in official documents

This situation is probably caused by one unit forwarding to another unit. Because I saw that the sample document you sent is only the regulations on the minimum living security for residents in Jiangsu Province. This regulation itself is not a normative document, but should be just another document (probably similar to the annex of the Notice on Printing and Distributing the Provisions on Minimum Living Security for Residents in Jiangsu Province or the Notice on Forwarding the Provisions on Minimum Living Security for Residents in Jiangsu Province to a Unit). For example, the document issued by the Civil Affairs Department of Jiangsu Province may be the Notice on Printing and Distributing the Provisions on the Minimum Living Security for Residents in Jiangsu Province, with the document number of Su Min Regulation [2012] No.2; Jiangsu Provincial Department of Finance forwarded the Notice on Forwarding the Provisions of Jiangsu Provincial Civil Affairs Department on Minimum Living Security for Residents. The document number used is naturally Su Caishe [2012] No.245 of the Finance Department. Therefore, two symbols are created. What you posted should be similar to a fragment compiled from a file, and both symbols were taken into account when compiling.

Although it is a guess, it is very likely. Documents issued by provincial units in Jiangsu Province should not make such low-level mistakes.