A4.601.5.2 Prerequisite and Elective Measures for Tier 2

In addition to the mandatory measures, compliance with the following prerequisite and elective measures from Appendix A4 is also required to achieve Tier 2 status.

1. From Division A4.1, Planning and Design.

   1. 1.1. Comply with the topsoil protection requirements for Tier 1 and Tier 2 in Section A4.106.2.3.
   2. 1.2. Comply with the 30 percent permeable paving requirements in Section A4.106.4.
   3. 1.3. Comply with the cool roof requirements in Section A4.106.5.
   4. 1.4. Comply with the Tier 1 electric vehicle (EV) charging requirements in Section A4.106.8.
   5. 1.5. Comply with at least four elective measures selected from Division A4.1.

2. From Division A4.2, Energy Efficiency.

   1. 2.1. For newly constructed low-rise residential buildings, comply with the energy efficiency requirements in Sections A4.203.1.1 and A4.203.1.2.2.
   2. 2.2. For additions to low-rise residential buildings, comply with the energy efficiency requirements in Section A4.204.1.2.

3. From Division A4.3, Water Efficiency and Conservation.

   1. 3.1. Comply with at least three elective measures selected from Division A4.3.
   2. 4. From Division A4.4, Material Conservation and Resource Efficiency.
   3. 4.1. Comply with the 25 percent cement reduction requirements in Section A4.403.2.
   4. 4.2. Comply with the 15 percent recycled content requirements in Section A4.405.3.1.
   5. 4.3. Comply with the 75 percent reduction in construction waste in Section A4.408.1.
   6. 4.4. Comply with at least four elective measures selected from Division A4.4.

4. From Division A4.5, Environmental Quality.

   1. 5.1. Comply with the 100-percent resilient flooring systems requirements in Section A4.504.2.
   2. 5.2. Comply with the thermal insulation requirements for Tier 1 and Tier 2 in Section A4.504.3.
   3. 5.3. Comply with at least one elective measure selected from Division A4.5.

Note: The Residential Occupancies Application Checklist contained in Section A4.602 may be used to show which elective measures are selected.