NPHC - National Pan-Hellenic Council - This is the council that governs the historically African-American Sororities and Fraternities. The groups covered under this council can be found here: http://www.nphchq.org/
NPC - National Panhellenic Conference - This is the council that governs sororities. The sororities covered in this conference can be found here: www.npcwomen.org
Re your housing question, this depends on the school. NPC advocates that all sororities on a campus hould have similar housing but this is not the reality everywhere.
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It is all 33girl's fault. ~DrPhil
NPHC - National Pan-Hellenic Council - This is the council that governs the historically African-American Sororities and Fraternities. The sororities and fraternities covered under this council can be found here: http://www.nphchq.org/
NPC - National Panhellenic Conference - This is the council that governs the historically white sororities. The sororities covered in this conference can be found here: www.npcwomen.org
Two completely different organizations.
FYP.
I dislike the fact that NPC falsely defines itself as "...the premier advocacy and support organization for the advancement of the sorority experience. The National Panhellenic Conference provides support and guidance for its 26 member inter/national sororities/women’s fraternities and serves as the national voice on contemporary issues of sorority life."