Work shall be on a single sheet of untreated paper, executed
in transparent watercolor with no white paint, collage, gouache, mixed media,
ink, watercolor crayons, or acrylic used as watercolor. All work must be unvarnished.
This defines the criteria for submissions to both Regular Society Membership
and juried shows. It in no way, however, restricts anyone from using any of
the aforementioned in workshops or paint-outs if so desired.