Published yesterday was a boundary change for the subdistrict municipality (Thesaban Tambon) Ko Sichang (เทศบาลตำบลเกาะสีชัง) in Chonburi province. The announcement was published in Volume 126, Issue พิเศษ 72 ง on page 47, and titled "ประกาศกระทรวงมหาดไทย เรื่อง เปลี่ยนแปลงเขตเทศบาลตำบลเกาะสีชัง อำเภอเกาะสีชัง จังหวัดชลบุร". It was signed as being ready for publication on October 30 last year already, and it was discussed in the joint meeting of board one and two on February 6 and August 27 2008. With Google translate it seems like the main point in this act is that the jurisdiction of the municipality is extended into some marine areas around the island, and not just the island itself as it was before.
One can see this most easily when comparing the maps of this announcement and the creation of the sanitary district Ko Sichang (สุขาภิบาลเกาะสีชัง) in 1957 (Gazette), which only covered the main island. This sanitary district was upgraded to a municipality in 1999, and in 2004 the area of the TAO Tha Thewawong (ท่าเทววงษ์) covering the minor islands around.