Survey and Mapping Infrastructure (Survey Standards—Requirements for Mining Tenures) Notice (No. 1) 2011 commenced on date of publication rep 28 February 2023 (see 2023 Act No. 2 s 109) [prev exp 31 August 2023 (see SIA s 56A and SIR s 5 sch 3)] [orig exp 1 September 2022 (see SIA s 54)] An explanatory note was prepared. SL 2011, No. 221 Explanatory Note