(a) Any person or corporation selling voting machines may apply to exhibit machines to the State Board of Election Commissioners.
(b) The state board shall examine the machine and file a report of its accuracy, efficiency, and capacity with the office of the Secretary of State.
(c) If the kind of machine examined complies with the requirements of § 7-5-504 and can be safely used by voters at elections under the conditions prescribed, the machine shall be deemed approved by the state board, and machines of its kind may be adopted for use at elections if selected for use by the Secretary of State. When the machine has been approved, any improvement or change that does not impair its accuracy, efficiency, or capacity shall not render necessary a reexamination or reapproval.
(d) A form of voting machine not approved cannot be used at any election.