Search within This 18.4.9.020 Applicability This section is included in your selections. A. Chapter 18.4.9 applies to all disc antennas, including antennas exempt from Site Design Review in accordance with 18.5.2.020.C and those that are subject to chapter 18.5.2 Site Design Review. B. Exceptions and Variances. Requests to depart from the requirements of this chapter are subject to subject to 18.5.2.050.E Exception to the Site Development and Design Standards.