According to the Pension Benefit Guaranty Corporation website, they will be sending a 1099-R to you with instructions to assist you with your taxes. If you have not received one by today, you can retrieve the 1099-R form through MyPBA.
See this page for more information PBGC.
Not sure what you mean really by "Classified".....What are you looking at in the software?
Just wild Guessing as to exactly what you are looking at....PBGC implies it is a qualified plan. but is a bit wishy-washy.
"Is my pension plan a tax-qualified plan under IRS rules?