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<p>At present, all commercial internal combustion engines produce exhaust emissions
that are harmful to health. Although some companies claim hydrogen combustion engines
are close to zero NOx emissions, as well as CO2, Government has yet to see evidence
to illustrate that zero harmful emissions at the exhaust are possible in either laboratory
or real-world conditions.</p><p> </p><p>We will continue to focus innovation support
to fully zero emission solutions. However, if technology developments enable renewable
hydrogen to be used in combustion engines with zero harmful tailpipe emissions, then
we would welcome this development.</p>
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