  In the fall of 2015 the first scientific observing run (O1) of the advanced
LIGO detectors will be conducted. Based on the recent commissioning progress at
the LIGO Hanford and Livingston sites, the gravitational wave detector range
for a neutron star binary inspiral is expected to be of order 60 Mpc. We
describe here our planning for an O1 search for coincidence between a LIGO
gravitational wave detection and a gamma-ray signal from the Fermi Gamma-ray
Burst Monitor. Such a coincidence would constitute measurement of an
electromagnetic counterpart to a gravitational wave signal, with significant
corresponding scientific benefits, including revealing the central engine
powering the gamma-ray burst, enhanced confidence in the event as a genuine
astrophysical detection, and a determination of the relative speed of the
photon and graviton.
