(1) Those assets described in Code Section 33-10-1;
(2) Those assets otherwise authorized by Code Sections 33-41-8 and 33-41-14;
(3) Obligations for premium payments, provided that such obligations are secured by letters of credit, as described in Code Section 33-41-9; and
(4) Assets that are approved by the Commissioner as admitted assets under rules adopted pursuant to this chapter.