Japan proposes stricter SAF regulations to slash aviation emissions
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Japan announced a new proposal that includes stricter rules for domestic producers of sustainable aviation fuel (SAF) to help cut greenhouse gas (GHG) emissions. It aims to finalize the discussions later this year.
Argus Media reported that the country’s joint commission of the government and private sector announced the proposal to promote SAF.
The proposed regulations mandate that producers of SAF must reduce greenhouse gas emissions from jet fuel use by more than 5% during the fiscal years from April 2030 to March 2035, compared to the levels in 2019-20.
In 2019-20, Japan’s domestic jet fuel supply was 12.5 million kilolitres (equivalent to 210,000 barrels per day).
The 5% reduction in greenhouse gas emissions translates to a decrease of 1.58 million tonnes of carbon dioxide. Japan’s Ministry of Trade and Industry will discuss additional emission reduction targets beyond 2035.
In 2022, the Japanese government required that SAF make up at least 10% of the jet fuel used by domestic airlines by 2030.
Read more: Korean Air expands cargo SAF program in partnership with CEVA Logistics
The new proposals also focus on advancing technology for producing SAF. This includes developing alcohol-to-jet fuel technology, according to an official from Japan’s Ministry of Trade and Industry who spoke to Argus Media.
Additionally, there is potential to promote synthetic fuel-based SAF, known as e-SAF, which could significantly reduce greenhouse gas emissions by 80-90% more than biofuel-based SAF.
Japan’s proposals would exceed SAF regulations globally, given that even the EU’s ReFuel EU aviation legislation adopted in 2023 does not mandate the “quality of SAF”, the Meti official added.
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