Indiana constitution
Article 4: legislative
Section 18

Every bill shall be read, by title, on three several days, in each House; unless, in case of emergency, two-thirds of the House where such bill may be pending shall, by a vote of yeas and nays, deem it expedient to dispense with this rule; but the reading of a bill, by title, on its final passage, shall, in no case, be dispensed with; and the vote on the passage of every bill or joint resolution shall be taken by yeas and nays.