Meeting with US transport secretary Pete Buttigieg on a visit to the US, the pair will discuss how to work together on reducing aviation emissions and share knowledge to accelerate the development of sustainable aviation fuel (SAF).
Harper said: "While an ocean separates us, we’ve never been more aligned with the US on the future of aviation and what that entails – whether it’s boosting jobs, opening new trade opportunities or delivering guilt-free air travel.
"This trip is a crucial part of our work to reduce emissions from aviation alongside the US, Canada and Singapore, and I look forward to meeting my counterparts and industry representatives."