Del. Code tit. 18 § 2938
The Commissioner shall keep a careful record of the securities deposited by each insurer, and when furnishing the annual certificates of value, he/she shall enter thereon the amount and value of the securities deposited by such insurer. If at any time it appears from such certificates or otherwise that the value of securities held on deposit is less than the reserve required by the method and basis of valuation prescribed in §§ 1111-1113 of this title on all the registered policies and bonds in force in such insurer, the insurer shall have made good the deficit. If the insurer fails to make good such deficit for 60 days it shall be deemed insolvent and shall be proceeded against in the manner provided by Chapter 59 (Rehabilitation and Liquidation) of this title.
18 Del. C. § 2938