47 CFR § 13.15
License term
February 16, 2021
First Class Radiotelegraph Operator's Certificates, Second Class Radiotelegraph Operator's Certificates, and Third Class Radiotelegraph Operator's Certificates are normally valid for a term of five years from the date of issuance. All other commercial radio operator licenses are normally valid for the lifetime of the holder.
[78 FR 23153, Apr. 18, 2013]