Section R403.6.2 is added to the IECC to read as follows:
R403.6.2 Ceiling fans. A ceiling fan, rough-in or whole house fan is provided for bedrooms and the largest space that is not used as a bedroom, provided that the whole house mechanical ventilation system complies with the requirements of Table R403.6.1.
Haw. Code R. tit. 3, Building Code Council, State Energy Conservation Code, subch. 2, 26