(1) shall call meetings of all county assessors, to provide instruction as to the law governing the assessment and taxation of all classes of property, and the department shall formulate and prescribe rules to govern assessors and county boards of tax appeals in the discharge of their duties;
(2) shall confer with, advise, and direct assessors and county boards of tax appeals as to their duties under the laws of the State:
(3) may visit any of the counties in the State to investigate the assessment, equalization, and taxation of all property subject to taxation and take any action necessary to insure the proper assessment, equalization, and taxation of the property;
(4) as often as annually, shall examine all the books, papers, and accounts of assessors, auditors, treasurers, and tax collectors, with a view to protecting the interests of the State, counties, and other political subdivisions and rendering these officers aid or instruction. The department does not have jurisdiction over personnel or equipment purchases of political subdivisions;
(5) shall require county auditors to place upon the assessment rolls omitted property which may have escaped assessment and taxation in whole or in part, in the current or previous years; and
(6) may extend the time for the performance of the duties imposed upon the county assessors or auditors for the valuation of property for tax purposes, and, when the Comptroller General extends the time for the collection of taxes, the department may postpone the time for the imposition of penalties.