This program is intended to serve as a stand-alone code for testing the GLF23 model for Ion Temperature Gradient (ITG) and Trapped Electron Mode (TEM) modes. The GLF23 model was formulated by approximating the linear growth rates of the 3D ballooning mode gyrokinetic (GKS) code whereby the transport coefficients were taken from simulations of a 3D nonlinear gyro-Landau-fluid (GLF) code. The model contains magnetic shear and Shafranov shift stabilization in addition to times rotational shear stabilization. It is a comprehensive transport model that predicts particle, electron and ion thermal, toroidal momentum flows as well as turbulent electron-ion energy exchange. It is a dispersion type transport model similar in construction to the fluid based Weiland ITG/TEM model.