  This paper determines a condition that is necessary and sufficient for a
metaplectic-c prequantizable symplectic manifold with an effective Hamiltonian
torus action to admit an equivariant metaplectic-c prequantization. The
condition is evaluated at a fixed point of the momentum map, and is shifted
from the one that is known for equivariant prequantization line bundles. Given
a metaplectic-c prequantized symplectic manifold with a Hamiltonian energy
function, the author previously proposed a condition under which a regular
value of the function should be considered a quantized energy level of the
system. This definition naturally generalizes to regular values of the momentum
map for a Hamiltonian torus action. We state the generalized definition for
such a system, and use an equivariant metaplectic-c prequantization to
determine its quantized energy levels.
