The authors describe an Inverse Free Electron Laser Accelerator and how it can be used to accelerate electrons to energies of several hundred GeV, with an average acceleration rate of 150 MeV/m. They discuss the system scaling laws for several undulator designs and the methods for laser beam transport over the required distance of a few kilometers. (9 References). 193 12th International Conference on High-Energy Accelerators unavailable 3 297 Beam handling techniquesCollective acceleratorsElectron acceleratorsFree electron lasersParticle beam diagnosticsLinear accelerators [A2915D], Beam handling, focusing, pulsing, stripping and diagnostics [A2925F], Free electron lasers [A4255T], Free electron lasers [B4320K], Particle beam handling and diagnostics [B7410B]300 GeV accelerator, Inverse Free Electron Laser mechanism, scaling laws, undulator, laser beam transport r 3 1983 FNAL 77 473-6 1983