Appendix A Summary of guidelines Rule 3.1 Required R3.1 text. Rule 4.1 Required R4.1 text. Rule 10.4 Mandatory R10.4 text. Rule 11.5 Advisory R11.5 text. Rule 15.5 Advisory R15.5 text. Rule 15.6 Required R15.6 text. Rule 17.7 Required R17.7 text. Rule 20.1 Advisory R20.1 text. Rule 21.3 Required R21.3 text. Rule 21.4 R21.4 text.