If a compliance evaluation, complaint investigation or other review by OFCCP finds a material violation of the Act or this part, and if the contractor is willing to correct the violations and/or deficiencies, and if OFCCP determines that settlement on that basis (rather than referral for consideration of formal enforcement) is appropriate, a written conciliation agreement shall be required. The agreement shall provide for such remedial action as may be necessary to correct the violations and/or deficiencies noted, including, where appropriate (but not necessarily limited to) such make whole remedies as back pay and retroactive seniority. The agreement shall also specify the time period for completion of the remedial action; the period shall be no longer than the minimum period necessary to complete the action.