(a) If the estimated construction cost is $50,000 or more, all plans and specifications for the construction of or alteration to a building or facility subject to §469.101 of the Act must be submitted by a design professional along with a form prescribed by the department to a registered accessibility specialist not later than the twentieth day after the plans and specifications are issued. In computing time under this section, Saturday, Sunday, and legal holidays are not included. All plans may be submitted in electronic format.(b) When there is not a design professional with overall responsibility, the owner of a building or facility must submit the construction documents to a registered accessibility specialist prior to filing an application for building permit or commencement of construction in an unincorporated portion of a county that does not issue building permits.(c) An owner or design professional may submit revised construction documents to a registered accessibility specialist to review, including change orders, addenda, or letters.(d) Construction documents provided to the department become the property of the department and will not be returned.