  The constituent quark rho meson electromagnetic form-factors are calculated,
with covariant and null-plane approaches with the same model. The null-plane
formalism produces the breakdown of the rotational symmetry for the one-body
current operador, wich is investigated by comparing the numerical results in
both approaches. This allows to choose the appropriate null-plane prescriptio,
among the several ones, to evaluate the rho meson form-factors.
