To assist WC insurers to determine if a COLA is payable, the SSA provides disability benefit (DIB) payment information to them upon request, via the state's Form CR-28 - COLA DATA Form

DIB payment information requests for a worker receiving WC benefits under Massachusetts law should be sent to:

Social Security District Office
ATTN: WC Unit
10 Causeway Street, Room 148
Boston, MA 0222-1213