(a) At the end of the period permitted under Sec. 725.410(b) for
the submission of evidence, the district director shall review the
claim on the basis of all evidence submitted in accordance with
Sec. 725.414.
(b) After review of all evidence submitted, the district director
may issue another schedule for the submission of additional evidence
pursuant to Sec. 725.410, identifying another potentially liable
operator as the responsible operator liable for the payment of
benefits. In such a case, the district director shall not permit the
development or submission of any additional medical evidence until
after he has made a final determination of the identity of the
responsible operator liable for the payment of benefits. If the
operator who is finally determined to be the responsible operator has
not had the opportunity to submit medical evidence pursuant to
Sec. 725.410, the district director shall allow the designated
responsible operator and the claimant not less than 60 days within
which to submit evidence relevant to the claimant's eligibility for
benefits. The designated responsible operator may elect to adopt any
medical evidence previously submitted by another operator as its own
evidence, subject to the limitations of Sec. 725.414. The district
director may also schedule a conference in accordance with
Sec. 725.416, issue a proposed decision and order in accordance with
Sec. 725.418, or take such other action as the district director
considers appropriate.