Based on your UI/HC/WD code, I assume you are a resident of or worked in New Jersey .
DIP.P.# ($51.29): This generally stands for Disability Insurance Private Plan. This amount represents the premium deducted from your pay to fund a disability policy, and the "#" typically precedes the private plan policy number.
UI/HC/WD - ($5.70): This is a mandatory New Jersey state tax assessment. It stands for the Unemployment Insurance / Health Care Subsidy Fund / Workforce Development Partnership Fund.
OST ($29.38): You'll need to contact your employer's payroll or human resources department to verify exactly what this internal code represents.
OT PREM ($894.47): This stands for Overtime Premium. This shows exactly how much of your total taxable wages reported in Box 1 was derived from overtime premium pay.
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