American Plains Artists - APA
American Impressionist Society - AIS
American Tonalist Society - ATS
Arizona Plein Air Painters - APAP
California Art Club - CAC
Cape
Cod Art Center - CCAC
Connecticut
Plein Air Painters Society - CPAPS
Indiana
Plein Air Painters of America - IPAPA
Laguna Plein Air Painters Association - LPAPA
Mid Atlantic
Plein Air Painters Association - MAPAPA
Montana Professional Artists' Association - MPAA
National Oil
and Acrylic Painters Society - NOAPS
Ohio Plein Air
Society - OPAS
Oil Painters of America - OPA
Ozark Regional Arts Council - ORAC
Plein Air Austin - PAA
Plein Air Artists Colorado - PAAC
Plein Air Easton - PAE
Plein
Air Muse - PAMUSE
Plein Air Painters of America - PAPA
Plein Air Painters of New Mexico - PAPNM
Plein Air Painters of
The Southeast - PAP-SE
Portrait Society of America
- PSA
Rio Grande Art
Association - RGAANM
Sangres Art Guild - SAG
Women Artists of the West -
WAOW