No, per state law, businesses or employers cannot access the CT’s Immunization Information System, called CT WiZ, or the CT WiZ Public Portal, for their employee’s immunization records, unless they have a signed release of information from their employee and fax or mail it to the Department of Public Health Immunization Program requesting that employee’s immunization record be mailed or faxed to their company. For more information, please visit: ALL ABOUT CT WiZ

If employees lose their CDC COVID Vaccination Card or their proof of vaccination, employees can access their own record through the secure online CT WiZ Public Portal or may contact the DPH Immunization Program. For more information, visit: I lost my vaccine card, how do I get another one? (ct.gov)