In most cases, the Stieberger DEVELOPMENT PERIOD will begin with the 48th month immediately preceding the date
of SSA's receipt of the request for review and end at the point of readjudication.
In some cases, however, the DEVELOPMENT PERIOD may start earlier or later than the
48th month. (See C.1, below.)
Application of the DEVELOPMENT PERIOD in cessation cases is discussed in DI 12586.015D.
Finally, there are some instances in which the DDS may have to develop for the entire
retroactive period. (See D. below.)