Insurance Code § 8090
ARTICLE 6. Assessments and Coverage of Loss
When the amount of any ascertained loss exceeds the cash funds of the reinsurer and also exceeds one-eighth of one per cent of the total amount of the insurance in force in the reinsurer, the president shall convene its directors. On so convening, the directors shall assess each member in proportion to the member’s reinsurance, taken in connection with the rate of premium under which such reinsurance is classified.