Indiana Code Title 3. Elections § 3-10-4-6.5

(1) That the presidential electors will serve as presidential electors unless a vacancy occurs in the office of presidential elector before the end of the meeting at which votes are cast, in which case an alternate presidential elector will fill the vacancy as a presidential elector.

(2) If an alternate presidential elector is appointed to fill a vacancy, the governor will submit an amended certificate of ascertainment stating the names on the final list of Indiana's presidential electors.

(1) bear the seal of the state of Indiana;  and

(2) contain at least one (1) security feature, as determined by the secretary of state, for purposes of verifying the authenticity of the certificate.