The Deputy Chief Financial Officer shall notify each owner of real property by mail of the supplemental assessment of the owner's real property.
The notice shall include any change in the assessment and right of appeal.
Notices shall be mailed as soon as possible after July 1st but not later than August 1st for a supplemental assessment conducted between January 1st and June 30th; and after January 1st but not later than February 1st for a supplemental assessment conducted between July 1st, and December 31st.
D.C. Mun. Regs. tit. 9, r. 9-365