The 2017 USMS Summer National Championship is being held August 2-6 at the University of Minnesota Aquatic Center in Minneapolis, Minnesota. This is a beautiful facility that has hosted numerous high level competitions, such as the USA Swimming National Championships. Meet entries close on July 5th, so don't delay! The event page is here: http://www.usms.org/comp/lcnats17/.
The 2017 FINA World Masters Championships in Budapest, Hungary has a deadline of June 29th. Please check the USMS page for more information: http://www.usms.org/comp/2017worldmasters/. If you are attending the competition, please check out the Facebook page created specifically for USMS members: https://www.facebook.com/2017WorldMastersUSMS/. They are posting newsletters and links that will be very helpful.