This guidance incorporates and extensively references guidance from the Intergovernmental Panel on Climate Change (IPCC) 2006 Guidelines for national greenhouse gas inventories(IPCC Guidelines)(IPCC, 2006) and 2019 refinement to the 2006 IPCC guidelines (IPCC, 2019). This chapter provides general guidance for collecting existing national/international data and new data. The material is intended bo...

An important goal of IPCC inventory guidance is to support the development of national greenhouse gas inventories that can be readily assessed in terms of quality. It is good practice to implement quality assurance/quality control (QA/QC) and verification procedures in the development of national greenhouse gas inventories to accomplish this goal. The procedures as described in this chapter also s...

Throughout the inventory compilation process the following QA/QC tasks take place to ensure that the inventory quality is maintained and improved, that the inventory is transparent and consistent internally and with other government statistics and is compliant with international guidelines on QA/QC and good practice....

The objective of any emission inventory review is to drive the development and reporting of highly transparent, complete, accurate, consistent and comparable data inventories. The process of a review is to ensure that an independent assessment of an inventory, report and/or data takes place, as well as to ensure consistency historically and across countries subject to a review. Every aspect of a r...

This document provides technical documentation of quality assurance and quality control procedures and approaches as a part of the ten volumes of the Emissions Inventory Improvement Program (EIIP) materials. These volumes provide standard procedures for calculating air emissions data with targeted quality objectives using cost effective approaches, but in some cases have become outdated....

EPA’s MOtor Vehicle Emission Simulator (MOVES) is a state-of-the-science emission modeling system that estimates emissions for mobile sources at the national, county, and project level for criteria air pollutants, greenhouse gases, and air toxics....

This chapter provides guidance in estimating and reporting uncertainties associated with both annual estimates of emissions and removals, and emission and removal trends over time. It is written from the viewpoint of the inventory compiler and provides, with examples, two approaches for combining category uncertainties into uncertainty estimates for total national net emissions and the trend....

This chapter addresses how to identify key categories 1 in a national inventory. Methodological choice for individual source and sink categories is important in managing overall inventory uncertainty. Generally, inventory uncertainty is lower when emissions and removals are estimated using the most rigorous methods provided for each category or subcategory in the sectoral volumes of these Guidelin...

This chapter provides guidance on the quantification of uncertainties in emissions inventories and is aligned with the‘2019 Refinement to the 2006 IPCC Guidelines for National GHG Inventories’ guidance (IPCC 2019). This chapter provides the user with a basic understanding of the issues of emission inventory uncertainty, with default values to be used in a first uncertainty analysis and describes t...

This chapter provides guidance for reporting complete, consistent and transparent national greenhouse gas inventories, regardless the method used to produce the data. The framework for reporting emissions and removals provided in the Revised 1996 IPCC Guidelines for National Greenhouse Gas Inventories (1996 Guidelines, IPCC, 1997) has been further elaborated for the 2006 IPCC Guidelines for Nation...