At least one airport does this with planes, John Wayne Airport in Orange County, CA. In the 1980s, they implemented stricter controls over how much noise plane

At least one airport does this with planes, John Wayne Airport in Orange County, CA. In the 1980s, they implemented stricter controls over how much noise planes flying in & out can make. [1] On related note, FedEx flew (flies?) Boeing 727s, a rather noisy plane by commercial jet standards. They knew that plane noise was increasingly become an undesirable trait, and managing noise levels needed to be made a priority. At some point, FedEx decided to that retrofitting 727s to produce less noise was a sound investment, so they​ built a hush kit. [2] It'd be interesting to learn whether the development of hush kits was a proactive and/or reactive decision. I suspect that a large enough country like the USA could heavily incentivize for more efficient shipping. The USA could levy a tax on goods shipped via inefficient ships. All they'd have to do is have enough information about the supply chain to reasonably enforce the tax. Sure, dodging the tax could be gamed, but compliance is a different issue. While the USA couldn't tell Canadian ports what to do, they could tax goods which entered Canadian ports when those goods enter the USA. [1] https://en.wikipedia.org/wiki/John_Wayne_Airport#Aircraft_noise_abatement_and_curfew https://en.wikipedia.org/wiki/John_Wayne_Airport#Aircraft_no... [2] http://www.fedex.com/us/hushkit/history/index.html http://www.fedex.com/us/hushkit/history/index.html