3.2.1 In addition
                                 to cases where direct calculations are specifically required by the
                                 Rules for scantling assessment or confirmation purposes, LR will consider
                                 direct calculations for the derivation of scantlings as an alternative
                                 and equivalent to those derived by Rule formulae. Where calculation
                                 procedures other than those available within ShipRight are employed,
                                 the assumptions made and the calculation procedure used are to be
                                 submitted for appraisal. The calculations are to be submitted for
                                 approval.