Under the state of North Carolina as mandated by the North Carolina Department of Insurance:

All Insurance Pre-licensing Certificates issued by any approved providers are only valid for 90 days from date of course completion.

Applicants who do not pass the State Examination within ninety (90) days from date of course completion, or within five (5) state examination attempts over the ninety (90) day period, will have to complete a pre-licensing course again at an approved provider to be eligible to take the state examination.

REFERENCE: https://www.asisvcs.com/publications/pdf/123400.pdf