I.R.S. Faults City Dealings On Pension
According to settlement agreement, Internal Revenue Service says New York City violated federal tax laws by withdrawing $177 million over seven years from municipal pension systems and using it to pay operating expenses; affected unions approved withdrawals starting in 1988 in exchange for additional benefits for retired city workers; any withdrawal of funds, other than to pay pensions or pension operating expenses, is illegal and can cause pension plan to lose tax exemption or subject it to significant penalties, but IRS has waived sanctions, citing city's financial crisis; although city agrees to terms of settlement, officials dispute contention that action was improper, saying city was authorized to receive funds (L)