This page lists open consultations on changes to the market codes. To view or respond to a consultation please click on the consultation link(s) below. Responses should be submitted by 6pm on the response deadline. If you have any queries on a consultation please contact

Reference Title Summary Issued Response Deadline Consultation Link

Market Codes

View all iterations of the Market Arrangement Codes (MAC) and Whosale Retail Codes (WRC).

Learn more

Code Changes

View all of the in-flight and past changes to the market codes.

Learn more

Keep up to date

Receive the most relevant and up-to-date communications from MOSL by signing up to our mailing list.