NUMBER | TITLE | DATE |
| RD 01/93 | Cost base report: October 1993 | 02/04/93 |
| RD 02/93 | Revision of regulatory accounting guidelines 2 | 15/04/93 |
| RD 03/93 (Corrigendum to FD 56) | RAG 4.01: Guideline for the analysis of operating costs and assets | 15/04/93 |
| RD 04/93 | Indexation procedures for 1992-93 regulatory accounts | 05/05/93 |
| RD 05/93 | Accounting treatment of infrastructure charges | 05/05/93 |
| RD 06/93 | Draft guideline for transfer pricing in the water industry | 12/05/93 |
| RD 07/93 | The long range normative charge for infrastructure renewals | 09/06/93 |
| RD 08/93 | Interest rates for requisitions and infrastructure charges: six monthly review | 18/06/93 |
| RD 09/93 | Tariffs for business customers | 23/06/93 |
| RD 10/93 | Cost base: October 1993 | 30/07/93 |
| RD 11/93 | IFS report: The distributional effects of different methods of charging households for water and sewerage services | 11/08/93 |
| RD 12/93 | Certification and audit for the Periodic Review | 16/08/93 |
| RD 13/93 | Debt and disconnection | 13/08/93 |
| RD 14/93 | Ofwat willingness to pay research | 11/08/93 |
| RD 15/93 | Demand report: October 1993 | 13/08/93 |
| RD 16/93 | Services for elderly and disabled customers | 13/09/93 |
| RD 17/93 | Interest rates for requisitions and infrastructure charges: interim review | 28/09/93 |
| RD 18/93 | Development of output measures | 19/10/93 |
| RD 19/93 | Debt and disconnection | 25/10/93 |
| RD 20/93 | The cost of water delivered and sewage collected 1992-93 | 27/10/93 |
| RD 21/93 | Computer hardware and software requirements for the strategic business plan submission and virus protection procedures | 12/11/93 |
| RD 22/93 | Certifiers and Auditors Joint Workshop 2 | 24/11/93 |
| RD 23/93 | Strategic business plan manual: latest revisions | 25/11/93 |
| RD 24/93 | Pipeline powers on private land | 17/12/93 |
| RD 25/93 | Seminar for companies on watermark 8 | 06/12/93 |
| RD 26/93 | 1994-95 principal statement | 20/12/93 |
| RD 27/93 plus 2 corrigenda | Updated costings: January 1994
(re MD 99, 6 December 1993) | 20/12/93 |
| RD 28/93 | Base operating expenditure. Research paper no 2: Modelling water costs | 23/12/93 |
| RD 01/94 | July return reporting requirements manual 1994 return | 09/02/94 |
| RD 02/94 | Strategic business plan: clarification of issues | 11/02/94 |
| RD 03/94 | Sewerage service base operating expenditure: research papers 3 and 4 and overview paper | 18/02/94 |
| RD 04/94 | RAG 5: Transfer pricing in the water industry | 10/03/94 |
| RD 05/94 | Reporters' and Auditors' Joint Workshops: quality enhancement programmes | 11/03/94 |
| RD 06/94 | Interest rates for requisitions and infrastructure charges: six monthly review | 21/03/94 |
| RD 07/94 | Optional meter schemes | 23/03/94 |
| RD 08/94 | Reporting of water disconnections 1993-94 | 12/04/94 |
| RD 09/94 | Regulatory accounts for 1993-94 | 09/05/94 |
| RD 09A/94 | Amendment to RD9 | 23/05/94 |
| RD 10/94 | Interest rates for requisitions and infrastructure charges: interim review | 23/05/94 |
| RD 11/94 | Regulatory accounts for 1993-94 | 02/08/94 |
| RD 12/94 | Personnel change: economic regulation | 05/08/94 |
| RD 13/94 | Reporting of water disconnections 1994-95 | 28/09/94 |
| RD 14/94 | Review of information for customers | 10/10/94 |
| RD 15/94 | Interest rates for requisitions and infrastructure charges: interim review | 20/10/94 |
| RD 16/94 | 1995-96 principal statement | 16/12/94 |
| RD 01/95 | Proposed levels of service output measures | 06/01/95 |
| RD 02/95 | Infrastructure charges | 09/01/95 |
| RD 03/95 | July return reporting requirements | 27/01/95 |
| RD 04/95 | Optional meter schemes 1995-96 | 10/03/95 |
| RD 05/95 | Reporting of water disconnections 1994-95 | 07/04/95 |
| RD 06/95 | 1993-94 Report on the cost of water delivered and sewage collected | 11/04/95 |
| RD 07/95 | July return 1996: proposed levels of service output measures; July return 1995: guidance for completion | 13/04/95 |
| RD 08/95 | Interest rates for requisitions and infrastructure charges: interim review | 25/04/95 |
| RD 09/95 | Regulatory accounts for 1994/95 | 03/05/95 |
| RD 10/95 | Guaranteed standards scheme 1994-95 | 01/06/95 |
| RD 11/95 | Reporters' and Auditors' Joint Workshop 5 | 13/06/95 |
| RD 11A/95 | Reporters' and Auditors' Joint Workshop 5: environmental expenditure programme | 19/06/95 |
| RD 12/95 | Reporting of water disconnections 1995-96 | 25/09/95 |
| RD 13/95 | Common carriage project | 27/09/95 |
| RD 14/95 | Interest rates for requisitions and infrastructure charges: six monthly review | 24/10/95 |
| RD 15/95 | Information for regulation: conclusions July Return 1996 reporting requirements | 03/11/95 |
| RD 16/95 | Water resource arrangements in the longer term work programme | 16/11/95 |
| RD 17/95 | 1996-97 principal statement | 15/12/95 |
| RD 18/95 | Land disposal | 15/12/95 |
| RD 19/95 | Reporters' and Auditors' Joint Workshop 6 | 18/12/95 |
| RD 20/95 | Water resource arrangements in the longer term: promoting the efficient use of water by companies | 28/12/95 |
| RD 01/96 | Optional meter schemes 1996-97 | 08/03/96 |
| RD 02/96 | Reporting of water disconnections 1995-96 and related matters | 08/03/96 |
| RD 03/96 | Interest rates for requisitions and infrastructure charges: six monthly review | 16/04/96 |
| RD 04/96 | Regulatory accounts for 1995/96: reporting requirements | 16/04/96 |
| RD 05/96 | Reflecting changes in RPI | 23/04/96 |
| RD 06/96 | Reporters' and Auditors' Joint Workshop 7 | 06/06/96 |
| RD 07/96 | Review of company debt and disconnection procedures | 12/08/96 |
| RD 08/96 | Reporting of water disconnections 1996-97 and related matters | 24/09/96 |
| RD 09/96 | Handling of requests under section 185 of the Water Industry Act 1991 | 09/10/96 |
| RD 10/96 | Interest rates for requisitions and infrastructure charges: six monthly review | 01/11/96 |
| RD 11/96 | Revision of RAG 2: Expenditure classification | 28/11/96 |
| RD 12/96 | 1997/98 principal statement | 13/12/96 |
| RD 01/97 | Information note on serviceability of pipework | 10/01/97 |
| RD 02/97 | Revisions to RAG5: Transfer pricing in the water industry | 21/01/97 |
| RD 03/97 | International comparison of the demand for water | 24/01/97 |
| RD 04/97 | The drought of 1995: a qualification study of large business customers in Bradford | 31/01/97 |
| RD 05/97 | Reporting of water disconnections 1996-97 and related matters | 06/03/97 |
| RD 06/97 | Summer water resources outlook/optional meters | 10/03/97 |
| RD 07/97 | Code of practice on pipelaying in private land: s182 Water Industry Act 1991 | 26/3/97 |
| RD 08/97 | Interest rates for requisitions and infrastructure charges: six monthly review | 09/04/97 |
| RD 09/97 | Possible cost of quality at the Periodic Review: initial costing guidelines | 10/04/97 |
| RD 10/97 | Regulatory accounts for 1996/97
Reporting requirements: RAG 3.04 | 23/04/97 |
| RD 11/97 | July Return 1997: information for efficiency models | 01/05/97 |
| RD 12/97 | Revisions to RAG 5: Transfer pricing in the water industry | 06/05/97 |
| RD 13/97 | Possible cost of quality at the Periodic Review: initial costing guidelines [addendum to RD 09/97] | 12/05/97 |
| RD 14/97 | The regulation of capital investment: July Return overview | 13/05/97 |
| RD 15/97 | Reporting requirements on companies' water efficiency plans | 15/05/97 |
| RD 16/97 | 1999 Periodic Review. Information requirement C: The capital maintenance return | 22/08/97 |
| RD 17/97 | Reporting of water supply disconnections 1997-98 and related matters | 10/10/97 |
| RD 18/97 | Interest rates for requisitions and infrastructure charges: six monthly review | 12/11/97 |
| RD 19/97 | 1999 Periodic Review: developing the reporting requirements for the proposed information returns D, E, F, G, H and I | 13/11/97 |
| RD 20/97 | 1999 Periodic Review. Information requirement D: The main quality costings submission | 14/11/97 |
| RD 21/97 | Bulk supply and sewerage connection agreements | 21/11/97 |
| RD 22/97 | 1999 Periodic Review. Information requirement I: Customer consultation and strategic option submission | 28/11/97 |
| RD 23/97 | 1999 Periodic Review. Information requirement G: The cost base | 28/11/97 |
| RD 24/97 | 1999 Periodic Review. Information requirement E: Supply /demand balance submission | 28/11/97 |
| RD 25/97 | 1999 Periodic Review. Information requirement H: Asset inventory and system performance | 01/12/97 |
| RD 26/97 | Comparisons of relative operating efficiency for the Periodic Review: water service explanatory factors | 01/12/97 |
| RD 27/97 | 1998-99 principal statement | 10/12/97 |
| RD 28/97 | Reporters and Auditors Joint Workshop 10 | 10/12/97 |
| RD 29/97 | RAG 5.02: Transfer Pricing in the water industry. Identification of related companies | 19/12/97 |
| RD 30/97 | 1999 Periodic Review. Information Requirement F:
July Return 1998. Specific enhancements to depreciation policies and accounting charges, taxation and regulatory accounts base position | 23/12/97 |
| RD 31/97 | Reporting requirements for promoting the efficient use of water | 23/12/97 |
| RD 01/98 | Competition in utility installations | 14/01/98 |
| RD 02/98 | Computers and the millennium 2000 | 22/01/98 |
| RD 03/98 | External review of reporters to the Director General of Water Services | 19/02/98 |
| RD 04/98 | 1999 Periodic Review. Information Requirement E: Supply/demand balance submission | 27/02/98 |
| RD 05/98 | Optional metering schemes | 27/02/98 |
RD 06/98
(DWI Information Letter 5/98) | s19 Distribution undertakings: collation of information requirements
| 04/03/98 |
| RD 07/98 | The Director's conclusions on RD 21/97: Bulk supply and sewer connection agreements | 06/03/98 |
| RD 08/98 | 1999 Periodic Review. Information requirement G: Cost base submission | 06/03/98 |
| RD 09/98 | 1999 Periodic Review. Information requirement H: Asset inventory and system performance submission | 27/03/98 |
| RD 10/98 | New Head of Competition | 30/03/98 |
| RD 11/98 | Determining sewer connection agreements | 31/03/98 |
| RD 12/98 | Reporting of water disconnections 1997-98 and related matters | 02/04/98 |
| RD 13/98 | Interest rates for requisitions and infrastructure charges: six monthly review | 07/04/98 |
| RD 14/98 | A benchmarking study of the England and Wales water companies and Sydney Water Corporation Ltd for 1996-97 | 20/04/98 |
RD 15/98
| Regulatory accounts for 1997/98
Reporting :requirements: RAG 3.04
Amendment to RD15/98 | |
| RD 16/98 | 1999 Periodic Review: approach to supply/demand balance expenditure | 27/04/98 |
| RD 17/98 | Periodic Review. Information Requirement I: Customer consultation and strategic options | 28/04/98 |
| RD 18/98 | 1999 Periodic Review: capital maintenance and operating expenditure | 20/05/98 |
| RD 19/98 | Levels of service: setting performance standards | 09/06/98 |
| RD 20/98 | Reporters and Auditors' Joint Workshop | 12/6/98 |
| RD 21/98 | The implications of future improvements in water company efficiency for the quality framework | 16/6/98 |
| RD 22/98 | Revised inset appointment process and policy booklet | 25/06/98 |
| RD 23/98 | Comparisons of relative operating efficiency: summary treatment measure | 21/07/98 |
| RD 24/98 | Periodic Review. PR99 K: Draft business plan: reporting requirements | 03/08/98 |
| RD 25/98 | Regulatory accounting reporting | 17/08/98 |
| RD 26/98 | Levels of service: setting performance standards. Responses to RD 19/98 | 28/08/98 |
| RD 27/98 | Operation of Condition N | 21/09/98 |
| RD 28/98 | Periodic Review. PR99 J: Update of quality costings: quality timetable to April 1999 | 21/09/98 |
| RD 29/98 | Confidentiality for July Returns and PR99 information | 25/09/98 |
| RD 30/98 | The Director's conclusions on RD 11/98: Determining sewer connection agreements | 29/09/98 |
| RD 31/98 | Reporting of water disconnections 1997-98 and related matters | 02/10/98 |
| RD 32/98 | Financial model rule book | 05/10/98 |
| RD 33/98 | Business plans for the 1999 Periodic Review | 09/10/98 |
| RD 34/98 | 1999 Periodic Review. Information requirement J: Update of the costs of quality enhancements | 13/10/98 |
| RD 35/98 | Efficiency assessments for prospects for prices | 29/10/98 |
| RD 36/98 | Customer satisfaction survey | 30/10/98 |
| RD 37/98 | Interest rates for requisitions and infrastructure charges: six monthly review | 06/11/98 |
| RD 38/98 | RD 27/98: Operation of Condition N | 17/11/98 |
| RD 39/98 | Second external review of reporters | 19/11/98 |
| RD 40/98 | Reporters and Auditors Joint Workshop 12 | 26/11/98 |
| RD 41/98 | 1999-2000 principal Statement | 16/12/98 |
| RD 42/98 | 1999 Periodic Review: cost base. Analysis of 1998 submission and revised reporting requirements | 22/12/98 |
| RD 01/99 | July Return 1999: submission date | 12/01/99 |
| RD 02/99 | Efficiency assessments: econometric models | 15/01/99 |
| RD 03/99 | Allocation of expenditure between quality enhancement and capital maintenance | 29/01/99 |
| RD 04/99 | PA Consulting report: operational process benchmarking | 16/02/99 |
| RD 05/99 | Information notes on the serviceability of assets in England and Wales up to March 1998 | 19/02/99 |
| RD 06/99 | Results of Ofwat market research | 03/03/99 |
| RD 07/99 | 1999 Periodic Review: approach to supply/demand balance expenditure and revenues | 09/03/99 |
| RD 08/99 | Revision to Financial Model Rule Book | 09/03/99 |
| RD 09/99 | Section 40 order determining terms for a bulk supply | 10/03/99 |
| RD 10/99 | Optional metering schemes 1999-2000 | 17/03/99 |
| RD 11/99 | Reporting of water disconnections 1998-99 and related matters | 26/03/99 |
| RD 12/99 | Section 40 order determining terms for a bulk supply | 31/03/99 |
| RD 13/99 | The AMP3 monitoring plan | 31/03/99 |
| RD 14/99 | Interest rates for requisitions and infrastructure charges: six monthly review | 15/04/99 |
| RD 15/99 | Regulatory accounts for 1998/99. Reporting requirements: RAG 3.04 | 21/04/99 |
| RD 16/99 | Making public the July Returns 1999 | 16/07/99 |
Letters to Regulatory Directors
