(iii) Schedule III – Twenty-Year Amortization. The following shall be amortized over a twenty-year period: New foundation, new plumbing (new fixtures or piping), boiler replacement, new electrical wiring, fire escapes, concrete patios, iron gates, sidewalk replacement and chimneys.
(B) Allowable Increase. One hundred percent (100%) of the certified costs of capital improvement, rehabilitation, and energy conservation work and improvements may be passed through to the tenants who benefit from such work and improvements. However, no increase under this Subsection 37.7(c)(4) shall exceed, in a twelve-month period, five percent (5%) the tenant's base rent at the time the petition was filed or $30.00, whichever is greater. A landlord may accumulate any certified increase which exceeds this amount and impose the increase in subsequent years subject to this 5% or $30.00 limitation.
(5) For Applications Filed On or After [May 1, 2002 or 60 Days Prior to Passage of This Ordinance on Second Reading, Whichever is Later], for Other Work and Improvements for Properties with Six or more Residential Units. For applications filed on or after [May 1, 2002 or 60 days prior to passage of this Ordinance on Second Reading, whichever is later], the following provisions shall apply to certification of all work and improvements for properties containing six residential units or more, with the exception of work and improvements certified under Subsections 37.7(c)(2) or (3):
(A) Amortization Periods. Costs shall be amortized on a straight-line basis over a seven or ten-year period, depending upon which category described below most closely relates to the type of work or improvement and its estimated useful life.