According to AI it was changed (upgraded) in the 2022 edition to OH2. OH1 in previous editions. I no longer have the array of NFPAs available that I used to have so can't verify the AI but here's exactly what I got from a Google swatch question:
"... before 2022, apparatus bays—and by extension, fire stations—were listed as Ordinary Hazard Group 1 (OH1) by NFPA 13, *Standard for the Installation of Sprinkler Systems*. This classification changed with the publication of the 2022 edition of NFPA 13, which now classifies automobile parking and showrooms as Ordinary Hazard Group 2 (OH2). " On Wed, Oct 8, 2025 at 12:24 PM Brett Peters <[email protected]> wrote: > I believe that if you go back a few editions parking garages were Ordinary > Hazard GrI and most Apparatus Bays were also listed as OHI but in the new > editions of NFPA 13, I'm not sure which edition it changed in, parking > garages are now listed as Ordinary Hazard GrII. > > The requirement for the Apparatus Bau to be OHI is probably an old > specification brought forward and hasn't been updated to OHII > > > > Thanks > > Brett Peters > General Manager Installation & Design > Proudline Fire Protection Services Ltd. > [email protected] > 780 490 7602 office ext 202 > 780 490 7605 fax > 780 777 0568 cell > 780 718 2676 24h > Visit us at www.proudline.ca > > > On Wed, Oct 8, 2025 at 1:17 PM Parsley Consulting <[email protected]> > wrote: > >> Having a bit of confusion. >> >> A project is to follow the 2022 edition of NFPA 13. >> >> The apparatus bays of a fire station have been designated on the plan as >> ordinary hazard, group 1. When I look at the examples in §A.4.3.3.2, it >> seems to me that those spaces would be similar to (2) "automobile parking >> garages", or (14) "machine shops", or (24) "repair garages." This would >> make the space similar to ordinary hazard group 2, which increases the >> required density from 0.15 gpm/ft² to 0.20 gpm/ft². >> >> Am I looking this incorrectly? Any help greatly appreciated. >> >> sincerely, >> -- >> *Ken Wagoner, SET* >> >> >> *Parsley Consulting 3002 Younger Drive Harrisonville, Missouri 64701-3909* >> *Phone: (760) 745-6181 * >> >> *Visit the website >> <https://linkprotect.cudasvc.com/url?a=http%3a%2f%2fwww.parsleyconsulting.com%2f&c=E,1,Y5zKJKPEh1mBEBqSR-VE9cUKl5y-eyP8BpvmE_5j9ZqW2eJbNphYzrCMBZ-2YuX6d-RRkHI4gQ1FV-cvOeCfRC58uZS9NiToZv2mx7909oCqLvCW_n5hDHeK&typo=1> >> * >> >> _________________________________________________________ >> SprinklerForum mailing list: >> >> https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org >> To unsubscribe send an email to >> [email protected] > > > _________________________________________________________ > SprinklerForum mailing list: > https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org > To unsubscribe send an email to > [email protected]
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