the college: Phi Mu, Phi Sigma Sigma, Delta Zeta, Alpha Chi Omega, and Theta Nu Xi; and five fraternities: Zeta Beta Tau, Alpha Tau Omega, Phi Kappa Tau, Delta Tau Delta, and Alpha Epsilon Pi. College regulations stipulate that students may not pledge to join a Greek organization until their sophomore year. Also, Kappa Kappa Psi, a band service fraternity, and Alpha Phi Omega, a service fraternity, can be pledged as a freshman. Notable people See also List of historic places in Allentown, Pennsylvania References External links Official website. Official athletics website. 1848 establishments in Pennsylvania Buildings and structures in Allentown, Pennsylvania Eastern Pennsylvania Rugby Union Muhlenberg College Liberal arts colleges in Pennsylvania Private universities and colleges in Pennsylvania Universities and colleges in Allentown, Pennsylvania