We describe the Oak Ridge Tokamak Transport Code. This code computes the number, momentum, and energy balance for particles and follows the evolution of tokamak poloidal and toroidal fields. The magnetic geometry is two dimensional, with solutions of the Grad-Shafranov equation providing flux surface topology. The velocity-space description of fast injected ions is also two dimensional, and the Fokker-Planck equation is solved for the injected species. Transport per se involves six coupled nonlinear partial differential equations, while the treatment of the plasma-wall interface requires the solution of 14 zero-dimensional rate equations. The XSDRN neutron and photon transport code has been adapted to serve as a neutral gas transport module. Some examples illustrating problems of present interest are presented.