(Amended by Ordinance No. 181437, effective December 21, 2007.) All mechanical work, including but not limited to heating, air conditioning, ventilating, gas piping and woodstoves, shall be designed and installed in accordance with the State of Oregon Mechanical Specialty Code, the State of Oregon Residential Specialty Code, Title 27 and this Chapter. Permits and inspections shall be required for all work except as specifically exempted by Title 28.
Existing mechanical which was lawfully in place in the City of Portland on January 1, 2008 or which was constructed or relocated under a valid permit after that date, shall be grandfathered as provided in Title 28.