INCE-USA offers this list as a service to the professional community. The vendors and their courses have excellent reputations. However, we make no warranty as to their availability or suitability for your purposes. We do not receive any remuneration from the vendors for these listings.
Bowlby & Associates offers training courses for the US Federal Highway Administration's (FHWA) Traffic Noise Model (TNM) 2.5.
Harris Miller Miller & Hanson Inc. offers training in the FAA’s "Aviation Environmental Design Tool (AEDT)". (This is the replacement for the now-defunct Integrated Noise Model (INM).)
Nelson Acoustics offers online training courses in the fundamentals of acoustics and noise control, low-noise product design, sound quality, industrial noise, and fan noise.