Appendix 16 - Rules having immediate legal effect Under Section 86B(3) of the RMA the rules and standards specified in the table below have immediate legal effect from 9 June 2016. The associated definitions, appendices and overlays applicable to those rules also have immediate legal effect. Rule Number Standard Number(s) 2.4.1 1 n/a 1 Although this prohibited activity rule has immediate legal effect, Section 87(b)(1) of the RMA requires that a prohibited activity rule must be treated as a discretionary activity until the rule is made operative.