Guidance (Water Services Regulation Authority (Ofwat))
- Trading and procurement codes– guidance on requirements andprinciples (June 2023)
- Business retail market 2021-22 review of the Retail Exit Code - Guidance for using Ofwat models
- A joint approach for how water companies should consider flood and coastal resilience in the context of their statutory roles and duties
- Paying fair – guidelines for water companies in supporting residential customers pay their bill, access help and repay debts
- Decisions on 'Paying fair guidelines' and summary of responses to consultation
- Leakage information request 2017-22 – supporting guidance
- Developer services information request 2021-22 – supporting guidance
- Canllawiau cymhwystra ynglŷn ag a yw cwsmeriaid busnes yng Nghymru a Lloegr yn gymwys i newid eu manwerthwr
- Eligibility guidance on whether business customers in England and Wales are eligible to switch their retailer - DRAFT
- Regulatory reporting requirements for new appointees in 2021-22 – Guidelines and line definitions
- Environment Agency water and sewerage company Environmental Performance Assessment (EPA) methodology (version 9) for 2021 to 2025
- Bioresources market information direction
- Alternative credit arrangements in the Business Retail Market – a guidance document
- Final guidance to facilitate the development, construction and operation of the Havant Thicket reservoir
- Asset management maturity assessment lexicon
- Bulk charges for new appointees - guidance on our approach and expectations
- PR19 Reconciliation Rulebook: Guidance Document
- Variation of the Appointments of Icosa Water Services Limited and Southern Water Services Limited as Sewerage Undertakers
- Developer services measure of experience (D-MeX) – guidance for the 2020-25 period
- Customer measure of experience (C-MeX) - guidance for the 2020-25 period
- PR19 Reconciliation Rulebook consultation - reconciliation model guidance
- PR19 Reconciliation Rulebook consultation - proposed approach and policy
- Guidance on Ofwat’s approach to granting derogations from the regulatory ring-fencing framework
- Final Interim Supply Direction - Ofwat to Pennon Water Services Limited
- Retention and disposal of information
- Board leadership, transparency and governance – Report on companies’ preparations for meeting the 2019 principles
- Thames Tideway Tunnel Project - Regulation 6(8) notice no.1 of 2019
- Reasons for issuing a Waiver Notice in respect of a contract between Tideway and Advanced 365 Limited
- Reporting guidance – Risk of sewer flooding in a storm
- PR19 Customer Measure of Experience (C-MeX): guidance for the C-MeX shadow year 2019-2020
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