Validation of classical equations of motion of the charge and spin of a Dirac particle in the one-particle quantum theory

The relativistic equations of motion of the spin and charge of a Dirac particle, with an anomal magnetic moment, in arbitrary applied electrom agnetic fields are derived within the framework of the covariant form alism of oneparticle quantum mechanics. Equations, which have the same form as the classical equations of motion of a charge and as the Bargmann - Michel - Telegdi spin equations of motion, are obtained in the zero approximation in ћ.