American Mosquito Control Association?
Not being familiar with the AMCA, I searched. Here's the first five results that came up, in order:
Air Movement and Control Association
American Medical Certification Association
American Mosquito Control Association
The Antique Motorcycle Club of America
Alaskan Malamute Club of America
From what I can tell about Dusty, he almost certainly is referring to the Alaskan Malamute Club of America.