(a) As used in this section, “general business manager” means a chief financial officer or business manager, however the position is titled, who: 
(1) Is responsible for the fiscal operations of the public school district; and 
(2) Performs his or her duties under the direction of the superintendent of schools of the public school district. 
(b) 
(1) On and after July 31, 2007, a general business manager for a public school district shall meet the minimum qualifications established by rule of the Division of Elementary and Secondary Education. 
(2) This subsection is intended to require minimum qualifications for a general business manager that support the implementation of best financial management practices for public school districts. 
(c) A general business manager who was employed before July 31, 2007, shall be exempt from the provisions of subsection (b) of this section.