Where there is a change of position, reopen and revise a determination under the 1-year
rule only if the result is favorable to the claimant.
As a general rule, benefits payable because of a change of position are paid no earlier
than the date of the change of position. Specific instructions regarding each change
of position address the beginning date for each change.
NOTE: Unless otherwise specified in implementing instructions, a change in the listings
(or other administrative change in disability criteria) resulting from amendments
to the regulations applies to the entire period at issue in the claim being adjudicated
in the determination, revised determination, decision, or revised decision.