 Only NRLCA can represent members of the rural carrier craft in the grievance procedure, including providing protection in disciplinary actions.To be able to join the NRLCA, one must first be employed by the USPS and work in the rural carrier craft as a rural carrier associate, substitute rural carrier, rural carrier relief, part-time flexible or regular carrier.Temporary relief carriers, under guidelines covered by article 7 of the NRLCA/USPS contract, are excluded from membership.