Do electrolyzers come under ASME codes for pressure vessels?

There is currently a published ASME BPV Code Case describing pressure design requirements for pressure design of electrolyzers. If the Code Case is adopted by the jurisdiction where a new electrolyzer will be installed, the new electrolyzer will have to meet the requirements in the Code Case. The responsible ASME committee is working to revise the Code Case and intends to incorporate the Code Case into ASME BPV Section VIII, Division 1. If the requirements of the Code Case are so incorporated, then jurisdictions that adopt this Section will also automatically adopt the requirements for new electrolyzers. The incorporation is unlikely to occur before the 2027 edition of the ASME BPV Code.