BIR is Bureau of Internal Revenue, Benefit/Investment Ratio, or Best Incremental Return.
COST OBJECT is anything for which cost data is desired, e.g., products, product lines, customers, jobs, and organizational sub-units such as departments or divisions of a company.
MANDATORY SPENDING is spending that is automatically obligated due to previously-enacted laws. In the United States, this would include things such as Social Security, Medicare, and the interest on the national debt. See DISCRETIONARY SPENDING.
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