Disability income policies usually have that is a time delay from the date of the issuance of the policy until benefit privileges are activated.
waiting periods
probationary periods
elimination periods
internal limit periods

The answer is probationary periods

It usually used to new employee. Usually, a company will give a 3-6 months trial for new employees to see whther they can fulfill the company;s standard or not. If not, company will them go If they can, they will revoke the status into  normal employment