§ 3-10. Electric, plumbing, and mechanical systems.

(a) In general.

Except as otherwise provided in subsection (b) of this section, electric, plumbing, and mechanical systems and their attendant components and equipment, including heaters, furnaces, generators, heat pumps, air conditioners, distribution panels, toilets, showers, sinks, duct work, and other permanent electrical, plumbing, or mechanical installations, are only permitted at or above the flood-protection elevation.

(b) Exceptions.

(1) Subsection (a) of this section does not apply to a system that is designed and installed, in accordance with ASCE 24, to prevent water from entering or accumulating within its components and to resist hydrostatic and hydrodynamic loads and stresses, including the effects of buoyancy, during the occurrence of flooding to the flood-protection elevation.

(2) In addition, electrical wiring systems for 1- and 2-family dwellings must conform to the requirements of the Baltimore City Residential Code for One- and Two-Family Dwellings, Part VIII {"Electrical"}, for wet locations.

(3) Subsection (a) of this section does not apply to routine maintenance, repairs, and the in-kind replacement of mechanical, electrical and plumbing systems in less than substantial improvement projects.