Canada and the provinces shall develop common standards and guidelines to be used to determine whether the design and operation of such catastrophic loss benefits have or will fulfill that purpose; Premiums 19.1.26 except for new crops, for which sufficient data does not exist, premiums shall be established in an actuarially sound manner based on historical loss experience. ###>Si on a recours à ces moyens de remplacement, la couverture ne doit pas excéder la valeur des produits assurés.