Minnesota Administrative Rules

1305.0716 SECTION 716, DUCTS AND AIR TRANSFER OPENINGS.

IBC Section 716.5.3 is amended by adding exception 5 as follows:

5. Fire dampers, smoke dampers, and combination fire/smoke dampers are not required in laboratory hood exhaust duct penetrations of shaft enclosures where laboratory ventilation systems are installed in accordance with NFPA 45.

Statutory Authority:

MS s 16B.37; 16B.59 to 16B.76; 326B.101 to 326B.194

History:

32 SR 7; L 2007 c 140 art 4 s 61; art 13 s 4; L 2008 c 337 s 64

Published Electronically:

February 23, 2009