International 5o5 Class Association Website:
http://www.int505.org/

American Section Website:
http://www.int505.org/usa/
US & Canadian Fleets:
http://www.int505.org/usa/usfleets/flt-dtl.htm

Region I - Northeast- Website
http://www.ne505.org/

Fleet 19 / Region II Website
http://www.int505.org/fleet19/

West Coast Website:
http://www.wavejump.com/505west/

Denver Website:
http://505denver.homestead.com

Northwest Website:
http://people.ouc.bc.ca/pshipley/nw505/index.html

San Diego Website:
http://www.sandiego505.com/