Idaho Code § 33-1207: Endorsement and registration of certificates.

The board of trustees of each school district shall cause the certificates of each holder thereof to be endorsed (a) prior to beginning service for the first time with the district, or (b) in the first year after a new or renewed certificate is issued, showing the date of service thereunder; and shall cause to be maintained a continuing record of certificates, by style and number, of each certificated employee of the district.