Sections R319.2, R319.3, and R319.4 are hereby added to the International Residential Code for One- and Two-Family Dwellings and shall read as follows:

R319.2 Illumination. All buildings shall have the ability to illuminate the address numbers during the hours of darkness from a power source connected to the house electrical system or other approved source of illumination.

R319.3 Numbers displayed during construction. Prior to beginning construction of any building for which a number is required, address numbers shall be posted in a conspicuous place on the front of the lot and shall be maintained throughout construction until the permanent address numbers are installed.

R319.4 Townhome supplemental address identification. In addition to the requirements in Sections R319.1 through R319.3, townhomes with exterior electrical meter banks and/or disconnect switches shall have supplemental address number identification at the electrical equipment to identify the address served by the equipment. Identification shall be permanently installed in an approved manner. Characters shall contrast with their background and shall have be a minimum of 1-inch in height.