  Astrophysical scenarios provide a unique opportunity to test the possible
signatures of Lorentz Invariance Violation (LIV) due to the high energies and
the very long distances they involve. An isotropic correction to the photon
dispersion relation, by hypothetical Lorentz invariance violation, has a
consequence that photons of sufficient energy are unstable and decay very fast.
The High Altitude Water Cherenkov (HAWC) observatory is sensitive to gamma-rays
in the 100 GeV to 100 TeV energy range, making it a very useful tool to study
LIV. In this work we present potential stringent limits for the LIV energy
scale at first and second order correction by the potential observations of
primary very high energy photons in HAWC energy range.
