Another option is to organize a local group of women and then petition to join the sorority of your choice. The particulars of the group vary from national sorority but generally the group of women petitioning must number at least 30, have been established a minimum length of time -generally a year--, go through an interview process etc.
This is taken directly from the Phi Mu website:
Phi Mu is a member of the National Panhellenic Conference, which is an organization of 26 women's international/national sororities. NPC has established some guidelines for expansion on a college campus.
If there are national women's sororities on a campus, a vote of the college Panhellenic must be taken to determine if there is a need for a new group through expansion. A local interest group or local sorority must receive the approval of the college Panhellenic before pursuing affiliation with an NPC group. If there are no women's sororities on campus, it important to know if the university would welcome the addition of women's sororities.
The Extension Committee of the National Panhellenic Conference will assist any campus wishing to add a NPC sorority chapter or establish a Panhellenic system. The Committee also will assist any local sorority wishing to affiliate with Phi Mu or any other NPC member group. Any individual, college Panhellenic or local sorority needing information should contact:
The Extension Committee
National Panhellenic Conference
NPC Central Office
3905 Vincennes Road, Suite 105
Indianapolis, IN 46268
317/872-3185
317/872-3192 FAX
Email:
npccntral@npcwomen.org
www.npcwomen.org
How Does Phi Mu Establish a Chapter?
Phi Mu can establish a chapter in two ways: Colonization by membership selection or acceptance of a petition from a qualified group of women. Phi Mu's goal is that each new colony and chapter is a strong, vital and contributing member of its campus community. Phi Mu staff and volunteers provide the support necessary to build a new chapter and sustain and guide the existing ones. Support is given by an advisory council of local alumnae, Chapter Consultants, a Colony Director, other national officers and Executive Office staff. For further information, contact the Phi Mu Executive Office