Upon receipt of a notice of deficiency, of denial or reduction of a refund claim, or of assessment of penalty or interest under section 3203 of this title, the taxpayer may, within 60 days after the date of mailing of the notice or assessment, petition the Commissioner in writing for a determination of that deficiency, refund, or assessment. The Commissioner shall thereafter grant a hearing upon the matter and notify the taxpayer in writing of his or her determination concerning the deficiency, refund, or assessment. (Added 1966 (Sp. Sess.), § 1, eff. Jan. 1, 1966; amended 1975, No. 154 (Adj. Sess.), § 1, eff. date, see note set out below; 1979, No. 105 (Adj. Sess.), § 12; 1989, No. 222 (Adj. Sess.), § 34; 2007, No. 190 (Adj. Sess.), § 22, eff. June 6, 2008; 2013, No. 73, § 23, eff. June 5, 2013.)