Chapter 18.4.5 TREE PRESERVATION AND PROTECTION This chapter is included in your selections. Sections: 18.4.5.010 Purpose. 18.4.5.020 Applicability. 18.4.5.030 Tree Protection. 18.4.5.040 Performance Security. 18.4.5.050 Verification Permit. 18.4.5.060 Heritage Trees.