Section 39-21-104 - Rejection of claims(1) Upon rejection, in whole or in part, of a claim for refund filed by a taxpayer, with respect to any tax set forth in section 39-21-103 (1), the executive director of the department of revenue shall send a notice of rejection to the taxpayer in writing by first-class mail as set forth in section 39-21-105.5; and, within thirty days from the mailing thereof, the taxpayer may request a hearing or file a brief with the executive director, except where the claim is for refund of a deficiency in taxes assessed after hearing or determination on written brief had under the provisions of section 39-21-103. Thereafter, both the taxpayer and the executive director shall proceed as provided in section 39-21-103 with respect to the hearing or determination on written brief. Upon reaching a decision upon the claim for refund after hearing had thereon or consideration of the written brief, the executive director shall send to the taxpayer, by first-class mail as set forth in section 39-21-105.5, notice of final determination of claim for refund, stating therein the grounds for allowance or rejection in whole or in part.(2) If the executive director determines that a request for a hearing related to the tax set forth in part 1 of article 22 of this title is a frivolous submission and rejects the request pursuant to section 39-21-104.5, the taxpayer shall not be entitled to a hearing before the executive director and the provisions of section 39-21-104.5 shall apply.L. 65: p. 1133, § 2. C.R.S. 1963: § 138-9-3. L. 77: Entire section amended, pp. 742, 841, §§ 2, 4, effective July 1. L. 96: Entire section amended, p. 164, § 2, effective July 1. L. 2003: Entire section amended, p. 661, § 2, effective March 20. L. 2004: (1) amended, p. 383, § 1, effective April 8.Amendments to this section by House Bill 77-1164 and Senate Bill 77-100 were harmonized.