Not sure if it is true, but this article says:
http://www.prnewswire.com/news-releases/faa-approves-5000-section-333-exemption-petition-grants-gowdy-brothers-aerospace-consults-on-next-steps-300259184.html
SHAKOPEE, Minn., April 28, 2016 /PRNewswire/ -- FAA Airman and Airspace Rules Division...