Indiana Code Title 4. State Offices and Administration § 4-8.1-2-7

Sec. 7. (a) Except as otherwise specified in this section, the treasurer of state may not pay any money out of the state treasury except upon warrant of the state comptroller or upon check drawn against a financial institution based on an approved claim.

(b) The treasurer of state may transfer money invested or on deposit in a public depository to any deposit account in the same or a different public depository.  A transfer between deposit accounts may be made by warrant, check, or electronic funds transfer.

(c) If a political subdivision (as defined in IC 36-1-2-13) elects to receive distributions from the state or if a state employee elects to have wages deposited directly in a financial institution under IC 4-15-5.9-2 by means of an electronic transfer of funds, the treasurer of state shall have the funds transferred electronically.

(d) Notwithstanding any other law, if:

the state comptroller may elect to authorize an electronic funds transfer method of payment.  If authorized by the state comptroller, the treasurer of state may pay money from the state treasury by electronic funds transfer.

(e) With regard to electronic funds transfer, a record of each transfer authorization shall be made by the treasurer of state immediately following the authorization and shall be made in a form which conforms to accounting systems approved by the state board of accounts.

(f) As used in this section, “electronic funds transfer” means any transfer of funds, other than a transaction originated by check, draft, or similar paper instrument, that is initiated through an electronic terminal, telephone, or computer or magnetic tape for the purpose of ordering, instructing, or authorizing a financial institution to debit or credit an account.