The interest collected on unpaid registration fees pursuant to N.C. Gen. Stat. § 105-330.4 shall be transferred on a monthly basis to the North Carolina Highway Fund. (2005-294, ss. 8, 9; 2006-30, s. 3; 2006-259, s. 31.5; 2007-471, s. 7(a); 2007-527, s. 22(a)-(c); 2008-134, ss. 63, 65, 66, 79; 2009-445, s. 25(b); 2010-95, s. 22(a), (b), (e); 2011-330, s. 42(a)-(c); 2013-414, s. 70(a), (c), (d); 2015-241, s. 29.30(n).)