Section SPS 364.0404 - Enclosed parking garages Substitute the following wording for the requirements in IMC sections 404.1 and 404.2:
(1) Mechanical ventilation systems for enclosed parking garages shall be permitted to operate intermittently by one of the following methods: (a) The system shall be arranged to operate continuously at a minimum exhaust rate of 0.05 cfm/sf. Subsequently, the system shall operate at a minimum of 0.75 cfm/sf automatically upon detection of vehicle operation, the presence of occupants, or by a combination of occupancy sensors and carbon monoxide and nitrogen dioxide sensors as appropriate for the room or space. The system shall also be designed so to address the requirements listed in s. SPS 364.0404(2) and (3).(b) The system shall be arranged to operate intermittently for a total of at least 5 hours in each 24-hour period at a minimum rate of 0.75 cfm/sf and shall also include the installation of carbon monoxide and nitrogen dioxide sensors as appropriate for the room or space. The system shall also be designed so to address the requirements listed in s. SPS 364.0404(2) and (3).(2)(a) The system shall be arranged to operate automatically upon detection of carbon monoxide at a level of 35 parts per million by automatic detection devices.(b) If diesel-fueled vehicles are stored, the system shall be arranged to operate automatically upon detection of nitrogen dioxide at a level of one part of per million by automatic detection devices.(3) The system shall maintain the garage at negative or neutral pressure relative to other spaces.Wis. Admin. Code Department of Safety and Professional Services SPS 364.0404
CR 00-179: cr. Register December 2001 No. 552, eff. 7-1-02; CR 01-139: r. and recr. (1) Register June 2002 No. 558, eff. 7-1-02; CR 06-120: r. and recr. Register February 2008 No. 626, eff 3-1-08; CR 10-103: am. (1) and (2) (c) Register August 2011 No. 668, eff. 9-1-11.Amended by, CR 16-094: r. and recr. Register April 2018 No. 748, eff. 5/1/2018