NFPA 91: Standard for Exhaust Systems for Air Conveying of Vapors, Gases, Mists, and Noncombustible Particulate Solids
Current Edition: 2010 Next Edition: 2015
Free access to the 2010 edition of NFPA 91About free access
Revision cycle information
| Revised Edition Date: | 2015 |
First Draft (previously Report on Proposals (ROP))
| Public Input Closing Date: | 1/4/2013 |
| First Draft Report Posting Date: | 9/6/2013 |
First Draft Meeting Notices (previously ROP Meeting Notices)
First Draft Meeting Agendas (previously ROP Meeting Agendas)
June 19-21, 2013, CC First Draft Meeting, NFPA, 1 Batterymarch Park, Quincy, MA 617-770-3000 (PDF, 231.8 KB)
February 28, 2013, First Draft Web/Teleconference Meeting (PDF, 242.5 KB)
First Draft Meeting Minutes (previously ROP Meeting Minutes)
First Draft Ballot (previously ROP Ballot)
Second Draft (previously Report on Comments (ROC))
| Public Comment Closing Date: | 11/15/2013 |
| Second Draft Report Posting Date: | 7/18/2014 |
Notice of Intent to Make a Motion (NITMAM)
| NITMAM Closing Date: | 8/22/2014 |
| NITMAM Posting Date: | 10/17/2014 |