SDCL § 32-5-2.2: Determination of month to register vehicle.

The first letter of the owner's last name shall determine the month in which a noncommercial vehicle owner shall register the vehicle. For a corporation or limited liability company, the first letter in its name shall be used. The registration shall proceed as follows:

January | A, B

February | C, D, E

March | F, G, J

May | H, I, O

June | K, L

July | M, N

August | P, Q, R

September | S

November | T, U, V, W, X, Y, Z

The secretary may promulgate rules pursuant to chapter 1-26 to allow owners with different last names living in the same household to register their noncommercial vehicles in the same month.