End Station A Test Beam (ESTB) is a beam line at SLAC using a fraction of the bunches of the 15.0 GeV electron beam from the Linac Coherent Light Source (LCLS), restoring test beam capabilities in the large End Station A (ESA) experimental hall. ESTB provides one of a kind test beam essential for developing accelerator instrumentation and accelerator R&D, performing particle and particle astrophysics detector research, CLIC and ILC linear colliders and detector interface (MDI) R&D studies, development of radiation-hard detectors, and material damage studies. It has exceptionally clean and well-defined secondary electron beams for detector development, a huge experimental area and good existing conventional facilities. Recently, we have completed the installation of a new kicker magnet to divert 5 Hz of the LCLS low energy beam into the A-line and extracted the beam from the LCLS beam line and send it to the A-line. We are planning to install 4 new kicker magnets that allow diverting up to 15 GeV beams. A new beam dump and a new Personnel Protection System (PPS) are built in ESA. We report about the progress and the ESTB commissioning phase. Show Partial Abstract