A residential property owner who is sixty-five (65) years of age or older or who is disabled shall be exempt from the provisions of this section.
If such an owner is issued a notice of violation, it shall be a complete defense if the owner self-certifies that he or she is sixty-five (65) years of age or older or disabled, unless the District shows by a preponderance of the evidence that the certification is false or does not meet the standards set forth in Subsection 1703.1 of this section.
For the purposes of this section an owner is disabled if the owner:
For the purposes of the exemption set forth in this section, the property must be owner-occupied and residential.
D.C. Mun. Regs. tit. 24, r. 24-1703