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Minnesota Administrative Rules

1346.0404 SECTION 404 GARAGES.

Subpart 1.

Section 404.1.

IMC Section 404.1 is amended to read as follows:

404.1 Enclosed parking garages. Mechanical ventilation systems for enclosed parking garages shall provide a minimum exhaust rate of 0.75 cfm per square foot (0.228m3 per minute per square meter) of floor area. Mechanical ventilation systems are not required to operate continuously where the system is arranged to operate automatically upon detection of a concentration of carbon monoxide of 25 parts per million (ppm) by approved automatic detection devices.

Subp. 2.

Section 404.2.

IMC Section 404.2 is amended to read as follows:

404.2 Motor vehicle repair garages. Mechanical ventilation systems for motor vehicle repair garages shall provide a minimum exhaust rate of 0.75 cfm per square foot (0.228m3 per minute per square meter) of floor area.

Subp. 3.

Section 404.3.

IMC Section 404.3 is amended to read as follows:

404.3 Occupied spaces accessory to public garages. Connecting offices, waiting rooms, ticket booths, and similar uses that are accessory to a public garage shall be maintained at a positive pressure and shall be provided with ventilation in accordance with the Ventilation Rate Procedure, Section 6.2 of ASHRAE 62.1-2004, or the Indoor Air Quality Procedure, Section 6.3 of ASHRAE 62.1-2004.

Subp. 4.

Section 404.4.

IMC Section 404.4 is amended by adding a section to read as follows:

404.4 Prohibition of heated commercial parking garages. Commercial parking garages shall comply with the Minnesota Commercial Energy Code, chapter 1323.

Statutory Authority:

MS s 16B.59; 16B.61; 16B.64; 326B.101; 326B.106; 326B.13

History:

15 SR 71; 29 SR 299; L 2007 c 140 art 4 s 61; art 13 s 4; 34 SR 537

Published Electronically:

October 23, 2009

700 State Office Building, 100 Rev. Dr. Martin Luther King Jr. Blvd., St. Paul, MN 55155 ♦ Phone: (651) 296-2868 ♦ TTY: 1-800-627-3529 ♦ Fax: (651) 296-0569