  The Dark Energy Spectroscopic Instrument (DESI) is under construction to
measure the expansion history of the Universe using the Baryon Acoustic
Oscillation technique. The spectra of 35 million galaxies and quasars over
14000 sq deg will be measured during the life of the experiment. A new prime
focus corrector for the KPNO Mayall telescope will deliver light to 5000 fiber
optic positioners. The fibers in turn feed ten broad-band spectrographs. We
will describe the methods and results for the commissioning instrument
metrology program. The primary goals of this program are to calculate the
transformations and further develop the systems that will place fibers within
5um RMS of the target positions. We will use the commissioning instrument
metrology program to measure the absolute three axis Cartesian coordinates of
the five CCDs and 22 illuminated fiducials on the commissioning instrument.
