This section contains the latest version of the market codes, the change process and consultations on changes.
Latest version of the Market Codes, reflecting all changes recommended by the Panel and approved by Ofwat.
How to raise a draft change / change, the change process and the status of current draft change / change proposals
Overview of the consultation process and live consultations
Click for more information...
Please login to view secure online content. If you’re not a member you can register here. Note registration is for MOSL members and Open Water partners only in order to access controlled documents on this site.
Forgotten your password? Reset it here or download our guide on how to reset your password.
Please complete ALL fields below. Registration is for MOSL members and Open Water partners only in order to access controlled documents on this site.
Already a Member? Log in here