(a) Each subscriber insured under an assessable policy has a contingent assessment liability for payment of actual losses and expenses incurred by the reciprocal while his policy was in force. This liability is in the amount provided for in the power of attorney or subscriber's agreement.
(b) The contingent assessment liability on any one policy in any one calendar year equals the premiums earned, as defined in G.S. 58-15-135, on the policy for that year multiplied by not more than ten.
(c) The contingent assessment liability is several and not joint.
(d) Each assessable policy issued by the reciprocal shall plainly set forth a statement of the contingent assessment liability on the front of the policy in capital letters, in contrasting color, and in no less than ten-point type.