To the early members of the Grand Council, acceptance into the National Panhellenic Conference seemed essential if Phi Mu, so recently expanded to national scope, was to survive. The members of the National Panhellenic Conference were seen as the highest tier of women's fraternal organizations, and many worried that if Phi Mu was not accepted as an NPC member, they would be looked down upon and "called as a preparatory sorority." At the 1910 National Convention, the decision was made to take the necessary steps to gain acceptance into NPC. The first step, however, was to disband the existing chapters at low-ranking institutions. For the good of the Fraternity as a whole, the representatives of Upsilon Delta, Zeta, Eta, and Theta voted to dissolve their own chapters. The decision, though difficult, proved fruitful, and Phi Mu was recognized as a member of NPC in December 1911, becoming just the 17th member of the body.