A. If any employer shall fail to make any report or return as required by the Employment Security Act of 1980, the Oklahoma Employment Security Commission or its duly authorized representative, from any information in the possession of or obtainable by the Commission, may determine the amount of contribution due from such employer, and shall mail a copy of the assessment to the last-known address of the delinquent employer. The assessment so made shall not preclude the Commission or its representative from making field audits of the books and records, wherever located, of the employer and from making further adjustments, corrections or assessments. The assessments provided for herein must be made, and a copy thereof delivered to the employer or mailed to the last-known address of the employer, within three (3) years after the date on which the report or return was required to be filed.

B. Assessments under this section may be appealed pursuant to the provisions of Section 3-115 of this title.