SEPA
Transparency Accelerator
Capacity Building Initiative for National Greenhouse Gas Inventories
A greenhouse gas (GHG) inventory is an essential tool
for understanding current emissions and trends,
projecting future scenarios, and identifying cost-
effective mitigation opportunities. As part of reporting
requirements of the Enhanced Transparency
Framework (ETF) under the Paris Agreement, all
countries will be required to report national GHG
inventories consistent with the 2006 Intergovernmental
Panel on Climate Change (IPCC) Guidelines for National
GHG Inventories starting in 2024.
Many developing countries have identified
challenges in implementing aspects of the 2006 IPCC
Guidelines, leading to inventories that can benefit
from improvements in transparency, completeness,
reproducibility, and time series consistency.
The Transparency Accelerator for Greenhouse Gas
Inventories is a capacity building initiative, established
by the U.S. Environmental Protection Agency (EPA) and
U.S. Department of State, to help developing countries
transition to the 2006 IPCC Guidelines and develop
sustainable GHG inventory management systems that
enable transparent, accurate, complete, comparable,
and consistent inventories.
Transparency Accelerator Approach
EPA develops tools and works directly with national inventory teams to help developing countries build
institutional and technical capacity for establishing, maintaining, and improving sustainable GHG inventory
management systems and producing high-quality inventory reports on a regular basis. This approach builds on
over two decades of experience preparing the Inventory of U.S. Greenhouse Gas Emissions and Sinks and lessons
learned from working alongside developing country experts.
Available online tools for GHG inventory compilers
include:
•	Toolkit for Building National GHG Inventory Systems
(see left), which contains templates to help inventory
compilers build and advance GHG inventory
management systems that suit national circumstances.
•	Agriculture and Land Use Greenhouse Gas Inventory
(ALU) Software, to assist compilers estimate emissions
and removals from agricultural and forestry activities.
EPA also employs direct technical bilateral assistance,
with an emphasis on supporting inventory needs in the
agriculture and land use sectors.
How to Use
the Templates
National Inventory
Improvement Plan
Methods
and Data
Documentation
Templates in the Toolkit for Building National GHG Inventory Systems
Visit us at: https://www.eDa.aov/ahaemissions/caDacitv-buildina-national-areenhouse-aas-inventories
Email us at: ahai. transparencv(3)epa.aov	EPA-430-F-21-025

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