  We address the problem of the identification and characterization of charged
states within local and covariant quantizations of abelian gauge theories,
focusing on a semiclassical model of infrared Gupta-Bleuler Quantum
Electrodynamics, based on the Bloch-Nordsieck approximation and formulated in
Feynman's gauge. The GNS construction over suitable functionals yields positive
subspaces of the indefinite-metric space of the model; charged states with
Li\'enard-Wiechert space-like asymptotics can then be constructed via an
automorphism of the algebra of observables implementing Gauss' law. Finally, by
an analysis of the localization properties of the corresponding expectations
over the asymptotic electromagnetic fields, it is shown that such states
identify an infrared-minimal charge class in the sense of Buchholz.
