While some ranges require that all firearms be unloaded and variously securely encased and/or trigger-locked prior to entering, or leaving, the range facility, irrespective of whether one holds a concealed carry license in jurisdictions where concealed carry is legal, many have no such regulations.
Whether indoors or outdoors, all shooters are typically required to wear eye protection as well as hearing protection (ear muffs or ear plugs) at all times when within the defined boundaries of the range.