1. Insurance and reinsurance undertakings shall provide for an effective actuarial function to:

(a) coordinate the calculation of technical provisions;

(b) ensure the appropriateness of the methodologies and underlying models used as well as the assumptions made in the calculation of technical provisions;

(c) assess the sufficiency and quality of the data used in the calculation of technical provisions;

(d) compare best estimates against experience;

(e) inform the administrative, management or supervisory body of the reliability and adequacy of the calculation of technical provisions;

(f) oversee the calculation of technical provisions in the cases set out in Article 82;

(g) express an opinion on the overall underwriting policy;

(h) express an opinion on the adequacy of reinsurance arrangements; and