I am a railroad employee. I have worked the full year with the railroad no other jobs to be claimed on my returned. On my W-2 box 14 list
EX OT WAGE
TIER 1A
TIER1B
TIER II
The only code in box 12 is DD not D.
What is the difference between TIER 1A and TIER 1B? All research I have done says there is only Tier 1 and Tier 2 (II) I have not found anything about a sub category for TIER 1.
