Hello, and thank you for your inquiry. If you are referring to the length and width dimensions, then yes. The diving envelope, which is defined as the minimum area required both dimensionally and depth-wise required for permissible diving is defined by each individual municipality in which the pool is located. Most of these codes are derived from the APSP/ANSI standards which are available here: https://apsp.org/standards. There has also been a movement towards an international pool and spa code, the adoption of which has just started to happen in a few municipalities. Information on that is available here: http://c.ymcdn.com/sites/www.svabo.org/resource/resmgr/news/ISPSC_Info_03242016.pdf