AHOoptimist
North America & Central
AHO
Bahamas Optimist Dinghy Association
North America & Central
BAH
Royal British Virgin Islands Yacht Club
North America & Central
IVB
Bermuda Optimist Dinghy Association
North America & Central
BER
Canadian Optimist Dinghy Association (CODA)
North America & Central
CAN
Cayman Islands Sailing Club
North America & Central
CAY
Salvador Sailing Association
North America & Central
ESA
Grenada Sailing Association
North America & Central
GRN
Puerto Rico Optimist Association (PROA)
North America & Central
PUR
Saint Lucia Sailing Association
North America & Central
LCA
La Fragata Sailing Club
North America & Central
CRC
Trinidad & Tobago Sailing Association (TTSA)
North America & Central
TTO
US Optimist Dinghy Association (USODA)
North America & Central
USA
Belize Sailing Association
North America & Central
BIZ
Antigua Yacht Club
North America & Central
ANT
Turks and Caicos, Provo Sailing Academy
North America & Central
TCA