The codes that govern the non-household retail market are the Wholesale Retail Code (WRC) and the Market Arrangements Codes (MAC). The WRC is a statutory code in the form of an agreement entered into by all wholesalers with those retailers that it is providing wholesale services to. The MAC is a non-statutory code which is established by license conditions set out by Ofwat.

Market Arrangements Code

 

 

Wholesale Retail Code

 

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1. Schedule 1: Terms and Conditions of a Wholesale Contract

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Effective From Date

01 Apr 2017

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b. Schedule 1 Part 2 Business Terms

Version no.

Effective From Date

31 Jul 2018

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Annex A - process diagrams

Version no.

Effective From Date

01 Apr 2017

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Annex B - process diagrams

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Effective From Date

01 Apr 2017

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Annex C - process diagrams

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Effective From Date

01 Apr 2017

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Annex D - process diagrams

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Effective From Date

01 Apr 2017

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Annex E- process diagrams

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Effective From Date

01 Apr 2017

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Annex F - process diagrams

Version no.

Effective From Date

01 Apr 2017

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Annex G - process diagrams

Version no.

Effective From Date

28 Sep 2018

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Annex H - process diagrams

Version no.

Effective From Date

01 Apr 2017

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Annex I - process diagrams

Version no.

Effective From Date

03 Jul 2017

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CSD 0001 - market entry assurance and market re-assurance

Version no.

Effective From Date

12 Mar 2018

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CSD 0002 - market performance framework

Version no.

Effective From Date

18 May 2018

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CSD 0003 - volume transfer planned

Version no.

Effective From Date

01 Apr 2017

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CSD 0004 - interim supplier allocation process

Version no.

Effective From Date

01 Apr 2017

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CSD 0005 - direction to supply allocation process

Version no.

Effective From Date

01 Apr 2017

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CSD 0006 - trading party administration and notification process

Version no.

Effective From Date

03 Dec 2018

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CSD 0007 - business continuity management

Version no.

Effective From Date

03 Dec 2018

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CSD 0101 - registration: new supply points

Version no.

Effective From Date

26 Oct 2018

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CSD 0102 - registration: transfers

Version no.

Effective From Date

26 Oct 2018

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CSD 0103 - registration: cancellations and erroneous transfers

Version no.

Effective From Date

01 Apr 2017

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CSD 0104 - maintain SPID data

Version no.

Effective From Date

26 Oct 2018

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CSD 0105 - error rectification and retrospective amendments

Version no.

Effective From Date

28 Sep 2018

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CSD 0106 - non-market meters

Version no.

Effective From Date

01 Apr 2017

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CSD 0201 - settlement timetable and reporting

Version no.

Effective From Date

31 Aug 2018

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CSD 0202 - meter read submission: process

Version no.

Effective From Date

01 Apr 2017

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CSD 0203 - meter read submission: validation

Version no.

Effective From Date

28 Sep 2018

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CSD 0206 - trade effluent processes

Version no.

Effective From Date

28 Sep 2018

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CSD 0207 - charge calculation, allocation and aggregation

Version no.

Effective From Date

01 Apr 2017

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CSD 0208 - submission and validation of wholesaler tariff data

Version no.

Effective From Date

01 Apr 2017

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CSD 0301 - data catalogue

Version no.

Effective From Date

26 Oct 2018

Error Codes (270kB)


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CSD 0301: error codes

Version no.

Effective From Date

17 May 2018

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CSD 0302 - standing reports and data extracts

Version no.

Effective From Date

26 Oct 2018

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CSD 0400 - common interface technical specifications

Version no.

Effective From Date

03 Dec 2018

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CSD 0401 - transactional interface for trading parties having a high volume of transactions

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Effective From Date

03 Dec 2018

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CSD 0402 - transactional interface for trading parties having a low volume of transactions

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Effective From Date

01 Apr 2017

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CSD 0403 - interface for the provision of reports from the market operator to trading parties

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Effective From Date

03 Dec 2018

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CSD 0404 - interface for the provision of tariff data and other data sets from trading parties

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Effective From Date

01 Apr 2017

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CSD 0405 - data query interface

Version no.

Effective From Date

01 Apr 2017

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CSD 0406 - service management interface

Version no.

Effective From Date

03 Dec 2018

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CSD 0501 - change management (new releases)

Version no.

Effective From Date

01 Apr 2017

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Form A/01: pre-application enquiry in relation to a new connection

Version no.

Effective From Date

30 Mar 2018

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Form A/02: application to connect to the wholesaler's water supply system

Version no.

Effective From Date

30 Mar 2018

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Form A/03: application for a building water supply

Version no.

Effective From Date

30 Mar 2018

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Form A/04: application to connect to the wholesaler's sewerage system

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Effective From Date

30 Mar 2018

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Form A/05: application to be registered as a retailer to a newly connected supply point for water and/or sewerage

Version no.

Effective From Date

30 Mar 2018

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Form B/01: metering activity carried out by the wholesaler

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Effective From Date

30 Mar 2018

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Form B/02: metering activity carried out by an accredited entity

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Effective From Date

30 Mar 2018

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Form B/03: request for Non-Market Meter Read to be carried out by the wholesaler

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Effective From Date

30 Mar 2018

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Form C/01: verification of meter details or meter supply arrangements

Version no.

Effective From Date

30 Mar 2018

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Form C/02: gap site supply point request and addition of service components

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Effective From Date

30 Mar 2018

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Form C/03: request for de-registration of a supply point or removal of service components

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Effective From Date

30 Mar 2018

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Form C/04: request for wholesaler to amend third-party references

Version no.

Effective From Date

30 Mar 2018

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Form F/01: enquiries and record of drinking water enquiries

Version no.

Effective From Date

28 Sep 2018

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Form F/02: complaints and record of drinking water complaints and concerns

Version no.

Effective From Date

30 Mar 2018

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Form G/01: trade effluent enquiries

Version no.

Effective From Date

30 Mar 2018

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Form G/02: trade effluent discharge application

Version no.

Effective From Date

28 Sep 2018

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Form G/03: Temporary trade effluent discharge application

Version no.

Effective From Date

28 Sep 2018

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Form H/01: request for an allowance to wholesale charges for a change to an existing allowance

Version no.

Effective From Date

30 Mar 2018

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Form H/02: request for a contribution offer for a meter to be installed at an unmeasured supply point

Version no.

Effective From Date

30 Mar 2018

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Form H/03: request for a review of assessed or unmeasured charges

Version no.

Effective From Date

30 Mar 2018

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Form H/04: application for change in tariff

Version no.

Effective From Date

28 Sep 2018

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Form H/05: application for gap site incentive

Version no.

Effective From Date

30 Mar 2018

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Form H/06: application for vacant premises incentive

Version no.

Effective From Date

30 Mar 2018

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Form I/01: retailer disconnection request

Version no.

Effective From Date

30 Mar 2018

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Form I/02: non-household customer disconnection request

Version no.

Effective From Date

30 Mar 2018

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Form I/03: request for wholesaler to use wholesaler's powers of entry for the purposes of disconnection

Version no.

Effective From Date

30 Mar 2018

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Form I/04: request for reconnection of a supply which has been temporarily disconnected

Version no.

Effective From Date

30 Mar 2018

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Form I/05: Disconnection performed by the Wholesaler in relation to non-payment in cases of a Self-Supply Retailer

Version no.

Effective From Date

30 Mar 2018

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