(a) Each policyholder within the group of physicians and health care providers, other than nursing homes and assisted living facilities, or within the group of nursing homes and assisted living facilities, has contingent liability for a proportionate share of an assessment made under this chapter of policyholders in the applicable group.
(b) If a deficit, as computed under the plan of operation, is sustained with respect to a group described by Subsection (a) in a single year, the board of directors shall levy an assessment only on the policyholders in the applicable group who held policies in force at any time during the two most recently completed calendar years:
(1) before the date the assessment is levied; and
(2) in which the association was issuing policies.

(c) The aggregate amount of an assessment under Subsection (b) must be equal to the amount of the deficit not recouped under Section 2203.251(b)(1) from the applicable policyholder’s stabilization reserve fund. Subject to Subsection (d), each policyholder in the applicable group shall be assessed for a portion of the deficit that reflects the proportion that the earned premium on the policies of that policyholder bears to the total earned premium for all policies of the association in the applicable group in the two most recently completed calendar years.
(d) The maximum aggregate assessment on each policyholder in the applicable group may not exceed the annual premium for the liability insurance policy most recently in effect.