Employees are not required to divulge their vaccination status. However, if they do not, they must wear a mask. Employers can ask employees to attest that they have been fully vaccinated. Employees who attest to being fully vaccinated may go maskless. An attestation is different than providing your vaccination card or medical records. Employers limit their inquiry by only asking for attestations to avoid HIPPA or other legal issues because you have a right to keep your medical records private. Policies and government orders are rapidly changing, so keep in mind that rules this week may not be rules next week.