  We derive the relativistic quantum kinetic equation for massless fermions
with vector and axial vector interaction using the Wigner function formalism.
The vector and axial vector currents are self-consistently treated with
corresponding constraint equations. The kinetic equations are derived and the
condition for equilibrium is discussed up to the first order of $\hbar$. In
addition to the vorticity and shear contributions, the divergence of the local
particle number density is also found to contribute to the kinetic equations.
