OK, so to sum up:
NPC/IFC:
- Some orgs allow pledges/new members to wear letters but not have anything with the crest. Others don't allow them to wear letters until after initiation.
- New members can wear things indicating their affiliation even if they can't wear letters (i.e. shirts with the name of the org spelled out, or the colors, or a new member pin).
NPHC:
- No letters or paraphernalia of any sort while on line. Can't wear them, can't display them, etc.
- No wearing the colors while on line.
- All lettered shirts, jackets, etc. would be in the solid colors of the org or a pattern that only used those colors.
[Would you have to forgo wearing
all NPHC orgs' colors while on line? For instance, if you're on line for SGRho and have a favorite red and white sweater, does it go in the closet until you cross?]
MCGLOs tend to follow the NPHC model. Locals can follow either model as they choose.
Did I miss anything?
It's so interesting to see the differences in the way different GLOs do things...
(btw, I like those line jackets

)
Edited for accuracy - thanks Senusret I