Indiana Code Title 27. Insurance § 27-1-36-47

(1) RBC instructions;

(2) RBC reports;

(3) adjusted RBC reports;

(4) RBC plans;  and

(5) revised RBC plans;

(1) used by the commissioner for ratemaking;

(2) considered or introduced as evidence in a rate proceeding;  or

(3) used by the commissioner to calculate or derive any elements of an appropriate premium level or rate of return for any line of insurance that an insurer or an affiliate is authorized to write.