The FO develops work activity issues in initial and CDR cases. Generally, this development
will consist of an SSA-821-F4 or SSA-820-F4, SSA-454-BK and, in CDR cases where the
prior work was not adequately documented at the time of initial adjudication, details
regarding the prior work.
In all initial cases, the FO makes the SGA determination and prepares an SSA-831-U3.
The FO can make and effectuate CDR determinations for all stat blind beneficiaries
under age 55. The PC is responsible for all CDR determinations for stat blind beneficiaries
who are age 55 or older. See DI 13010.135.