Example 1: Harold is entitled to a monthly disability annuity with a tier I component of $507 and a monthly public disability benefit of $410 from the state. Eighty percent of Harold's average current earnings is $800. Because this amount is higher than Harold's tier I component, to determine the reduction for other disability benefits the Board subtracts this amount ($800) from the total of Harold's tier I component ($507) and public disability benefit ($410) which results in a reduction amount of $117 ($917-$800). This leaves Harold with a reduced tier I amount of $390 ($507-$117).
Example 2: Tom is entitled to a disability annuity with a tier I component of $560. His wife and divorced wife are both entitled to annuities with tier I components of $280 each. Total benefits are $1,120. Tom is receiving a monthly workers' compensation benefit of $500 from the state. Eighty percent of Tom's average current earnings is $820. Because the total benefit ($1,120) is higher than Tom's average current earnings, to determine the reduction for other disability benefits the Board subtracts this amount from $1,620 ($1,120 plus $500) which results in a reduction amount of $500. This means that the tier I of the spouse and divorced spouse annuity are each reduced by $250.
20 C.F.R. §226.71