Global coordination

As for the United States, which is by far the most significant competitor, such national programmes are maintained by the Federal Aviation Authorities (FAA) and by NASA. Of course, these programmes are conducted in strong coordination with dozens of universities and their large industrial ecosystem. US research is manifold, encompassing the whole scope of noise research from reducing noise at source to human impact through Air Traffic Management (ATM) and civil supersonic aircraft. Key projects are (or were):

• The NASA Advanced Air Transport Technology (AATT) project.

^{NASA's vision for advanced fixed wing transport aircraft is revolutionary energy efficiency and environmental compatibility. The overarching goal of the AATT Project is to explore and develop technologies and concepts to enable this vision.}

• The NASA Environmentally Responsible Aviation (ERA) project. Summary video ERA part 1 & ERA part 2.
   
• The FAA Continuous Lower Emissions, Energy, and Noise (CLEEN) Program. Summary of Phase I and Phase II.

^{The Continuous Lower Energy, Emissions and Noise (CLEEN) Program is the FAA's principal environmental effort to accelerate the development of new aircraft and engine technologies and advance sustainable alternative jet fuels. Through the CLEEN Program, the FAA is a cost-sharing partner with industry. CLEEN projects develop technologies that will reduce noise, emissions, and fuel burn and enable the aviation industry to expedite integration of these technologies into current and future aircraft. CLEEN is a key element of the NextGen strategy to achieve environmental protection that allows for sustained aviation growth.}

Through the Consortium for Research and Innovation in Aerospace in Quebec (CRIAQ) and its federal extension, the Consortium for Aerospace Research in Canada (CARIC), Canada is maintaining the Green Aviation Research and Development Network (GARDN), which supports an extensive portfolio of research projects.

^{The Green Aviation Research and Development Network (GARDN) is a non-profit organization funded by the Business-Led Network of Centres of Excellence (BL-NCE) of the Government of Canada and the Canadian aerospace industry. To increase Canada’s aerospace competitiveness, GARDN funds collaborative projects that can reduce the environmental footprint of the next generation of aircraft, engines and avionics systems developed in Canada. GARDN helps its members from academia and industry bring their innovative ideas to life.}

There is also a noticeable joint US-Canada collaboration programme named ASCENT, which is exquisite because of its environmental aviation impact research highlighting their efforts on the noise impact.

^{The Aviation Sustainability Center (ASCENT) – is a cooperative aviation research organization co-led by Washington State University and the Massachusetts Institute of Technology. Also known as the Center of Excellence for Alternative Jet Fuels and Environment, ASCENT is funded by the FAA, NASA, the Department of Defense, Transport Canada, and the Environmental Protection Agency. ASCENT works to create science-based solutions for the aviation industry’s biggest challenges.}

Russia is also a key player with recurrent national research programmes on both subsonic as well as supersonic noise. Besides that, they have joint noise research projects with China and Brazil. One of the leading research partners in Russia is TsGASI.

^{The Central Aerohydrodynamic Institute named after N.E. Zhukovsky (TsAGI) is the largest scientific research center in the world (1918). Under the Russian Federation Government Decree No.247 of March 29, 1994 TsAGI was designated a State Research Center.}

The effort is also ongoing in Japan though it passes through more specific and topical projects such as FQUROH (Flight Demonstration of Quiet Technology to Reduce Noise from High-lift Configurations) or Environment-Conscious Aircraft Technology Program (ECAT), maintained by the Japanese Aerospace eXploration Agency (JAXA).

^{The Japan Aerospace Exploration Agency (JAXA) was born through the merger of three institutions, namely the Institute of Space and Astronautical Science (ISAS), the National Aerospace Laboratory of Japan (NAL) and the National Space Development Agency of Japan (NASDA). It was designated as a core performance agency to support the Japanese government's overall aerospace development and utilisation. JAXA, therefore, can conduct integrated operations from basic research and development, to utilisation.}

In France, the mission is ensured by the Conseil de la Recherche Aéronautique Civile (CORAC). As for noise, CORAC maintains roadmaps, and it orients funding from the French authorities. As for noise, it used to take ground on the work previously performed by the French' Initiative de Recherche pour l'Optimisation acoustiQUe Aéronautique' (IROQUA), which produced an extensive report at the end of 2014. IROQUA (2005-2015) ceased its activities soon after and was superseded by the CORAC, which scope is broader – it focuses on climate, air quality and noise and brings together all key stakeholders in the French air transport sector and aims to bring together research and innovation efforts in the aeronautical field, particularly for the preservation of the environment and sustainable development, including the development of the aviation roadmap.

It is also worth mentioning several longstanding projects of surveys aiming to monitor aviation noise and other noise sources as well as their impact on human beings. For instance, DEBATS took place between 2012 and 2013 around Paris Charles-de-Gaulle and Toulouse-Blagnac airports with some recent updates in 2019. The project aimed to characterise the health effects of aviation noise. It consisted of three studies combining surveys and medical monitoring (blood pressure, cardiac frequency, cortisol measurement) and quality of sleep monitoring. Statistical analyses are to substantiate the health effect of aircraft noise.

Bruitparif is also maintaining various online noise platforms, which typify the noise impact in the area of Paris, among which Survols is the specific platform for aviation noise.

In Germany, there are at least two federal programmes. The first one is the national aviation research program LUFO ("Luftfahrtforschungsprogramm") from the Federal Ministry for Economic Affairs and Energy (BMWi). It is a technical funding program for aviation in general, partly including aircraft noise. Though it is strongly oriented towards competitiveness, including key topics that are artificial intelligence and hybrid or electric propulsion systems. The programme is also claiming 'to pioneer for disruptive aircraft configurations with the smallest ecological footprint'.

On the other hand, the German Environmental Agency (UBA) works on the National Research Program on Environmental Issues ('ressortforschungsprogram'). Several research projects on environmental noise impact, including aircraft noise, have been commissioned within this programme's frame within the last years. However, it's not only on aircraft noise but also on infrasound (from different sources), industrial noise, wind turbine noise, noise from leisure and sports facilities.