§ 3-6. Less than substantial improvement.

(a) In general.

If the construction, reconstruction, or modification of any structure constitutes less than a substantial improvement:

(1) the installation of any electric, plumbing, or mechanical systems must comply with § 3-10 {"Electric, plumbing, and mechanical systems"} of this subtitle; and

(2) those parts of the improvement below the flood-protection elevation must:

(i) be floodproofed; and

(ii) otherwise comply with the design and construction standards of ASCE 24.

(b) Exceptions.

(1) Routine maintenance, repairs, and the in-kind replacement of mechanical, electrical, and plumbing systems are exempt from the requirements of this section.

(2) For in-kind replacement, the systems must be elevated to the maximum extent possible to avoid or minimize flood damage.