1. Basics of GHG inventory preparation and Introduction to the IPCC Guidelines and Good Practice Guidelines UNFCCC Workshop on the use of the guidelines for the preparation of national communications from non-Annex I Parties 10 April Port Louis, Mauritius Kiyoto Tanabe Technical Support Unit IPCC National Greenhouse Gas Inventories Programme

2. IPCC IPCC (Intergovernmental Panel of Climate Change)
Common reporting framework, scientific background and methodologies
Revised 1996 IPCC Guidelines
Good Practice Guidance and Uncertainty Management (GPG)
used by all countries
For national GHG inventory preparation

3. Revised IPCC 1996 Guidelines
Approach:
Annual emissions and removals
Sectoral:
By gas
Tiered approach
National methods and emission factors can/should be used within the common reporting framework

4. Structure Volume I Reporting Instructions Volume II Workbook
Introduction, general instructions, reporting tables, uncertainty management and glossary
Volume II Workbook
step-by-step instructions how to estimate the emissions
Default values
IPCC Software – a supplement to the Workbook
Volume III Reference Manual
Scientific background, understanding of the methodologies, references

5. Sectors Energy Industrial Processes Solvent and Other Product Use
Agriculture
Land-Use Change and Forestry
Waste

6. Gases Carbon dioxide (CO2) Methane (CH4) Nitrous Oxide
Hydrofluorocarbons (HFCs), Perfluorocarbon (PFCs) and SF6
Ozone and aerosol precursors (VOCs, NOx and SO2)

7. IPCC Report on Good Practice Guidance and Uncertainty Management in National Greenhouse Gas Inventories
aim to assist countries in producing inventories:
that are neither over- nor underestimates so far as can be judged
in which uncertainties are reduced as far as practicable

8. Objectives of Good Practice Guidance
Further aims, to produce inventories which are:
transparent
documented
consistent over time
complete
comparable
assessed for uncertainties
subject to quality control and assurance
efficient in the use of resources

9. Key concepts of Good Practice Guidance
Complements and is consistent with the Revised 1996 IPCC Guidelines.
Same definitions of specific source categories
Same functional forms for the equations
Correction of any errors or deficiencies that have been identified

10. Structure of the report
Preface
Chapter 1 Introduction
Chapter 2 Energy
Chapter 3 Industrial Processes
Chapter 4 Agriculture
Chapter 5 Waste
Chapter 6 Quantifying Uncertainties in Practice
Chapter 7 Methodological Choice and Recalculation
Chapter 8 Quality Assurance and Quality Control
Annex 1 Conceptual Basis for Uncertainty Analysis
Annex 2 Verification
Annex 3 Glossary
Annex 4 List of Participants
Source category good practice guidance

11. Source category specific good practice guidance
Methodological issues
Choice of method (which “tier”)
Choice of emission factors
Choice of activity data
Ensuring complete estimates
Ensuring consistency throughout the time series
Quantifying uncertainty
default values for uncertainty ranges

13. Source category specific good practice guidance
Reporting and documentation
What information is necessary for the specific source category
Inventory quality assurance and quality control (QA/QC)
Particular aspects of source category estimates

14. Quantifying Uncertainties in Practice
Guidance on
determining
combining
reporting
uncertainty ranges from empirical data and expert judgment

15. Methodological Choice and Recalculation
Identification of Key Source Categories
“A key source category is one that is prioritised within the national inventory system because its estimate has a significant influence on a country’s total inventory of greenhouse gases in terms of the absolute level of emissions, the trend in emissions, or both.”

16. Methodological Choice and Recalculation
How to identify key source categories
Quantitative approaches
Level Assessment
Trend Assessment
Taking uncertainties into account (Tier 2)
Qualitative criteria
mitigation technologies
high expected growth
high uncertainty
unexpectedly high or low emissions

18. Quality Assurance and Quality Control
General QA/QC activities for all source categories
Source category QA/QC activities as Tier 2 (primarily for key source categories)

19. Annexes
Annex 1 : the statistical theory of uncertainties that underlies the practical advice provided in the main chapters
Annex 2 : international and scientific aspects of inventory verification
Annex 3 : glossary

20. Conclusions IPCC Guidelines and GPG
Methodologies and framework for inventory preparation
aims to facilitate the production of unbiased, transparent, accurate and well-documented inventories
GPG applies to all method levels - not just “highest” tier
GPG sets a high standard for quality, but recognizes that resources are limited
Provides information on setting priorities, focused on key source categories and choice of method and QA/QC

21. Conclusions
National circumstances vary - national and regional input important (IPCC guidelines contain default values but do not cover all regions/countries and categories)
Improvement of inventory methodologies, activity data and emission factors is continuos work - on national, regional and global scale

22. Future - Further Development
The report on Good Practice Guidance for LULUCF is now being developed. (To be completed by the end of 2003, and will be submitted to COP9)
Revision of the Revised 1996 IPCC Guidelines - the project will be initiated this year with a view to completion by early (As invited by SBSTA17.)