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Building Codes Division (BCD)

Mechanical Interpretations - Rescinded
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Mechanical Interpretations

Issue date	Interp Number & Subject
06/15/2008	(No #) Motor and fan requirements for Hazardous Exhaust Systems 2007 OMSC
04/12/2005	(No #) Venting of Fuel-Gas Regulators
04/01/2004	(No #) Testing of Hydronic Piping Systems
10/01/2002	(No #) Permanent Roof Top Access on Retrofit Installations - Rescinded
10/01/2002	(No #) Guards for Retrofit Roof Top Units - Rescinded
09/01/2002	(No #) Installation of Exhaust Fan in Other Similar Rooms
05/02/2000	93-72 Use of Wood Burning Appliances for Comfort Heating (Revised) - Rescinded
05/01/2000	93-47 Masonry Heater/Radiant Heat Systems (Revised) - Rescinded
08/11/1999	93-33 Commercial Hoods and Kitchen Ventilation (Revised)
07/15/1999	93-6 Gas Log Lighters (Revised, editorial) - Rescinded
06/09/1994	93-57 Copper Pipe Used for Gas Piping - Rescinded
03/10/1994	93-81 Insulation Clearance to Listed Vents - Rescinded
01/26/1994	93-89 Concealed Unions on Furnaces - Rescinded
01/26/1994	93-91 Vibration Isolators - Rescinded
01/26/1994	93-90 2.5 Inch Thick Masonry Wall Protection
01/26/1994	93-83 Gas Piping Under Buildings
11/19/1993	93-74 Unvented Gas-Burning Space Heaters
10/01/1993	93-43 Solid Fuel-Burning Appliance Exception to 1993 Oregon Energy Code Section 5306 - Rescinded
12/03/1992	92-22 Duct Insulation Requirements for Retrofit of Existing Forced Air Heating Equipment

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