On 3 April 2018, the AEMC made the National Electricity Amendment (Minor Changes) Rule 2018 No. 4, the National Gas Amendment (Minor Changes) Rule 2018 No. 1 and the National Energy Retail Amendment (Minor Changes) Rule 2018 No. 1. These Rules were made by the AEMC to correct minor errors and make non-material changes to the National Electricity Rules (NER), National Gas Rules (NGR) and the Energy Retail Rules (NERR).