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IRS Office of Research Headquarters measures and models taxpayer burden, defined as expenditures of time and money by taxpayers to comply with the federal tax system. In this research activity, IRS created two microsimulation models using econometric techniques to enable the Service to produce annual estimates of taxpayer compliance burden for individual(More)
Objectives: 1. To investigate effectiveness of ozone and biological filtration at removing selected endocrine disrupting compounds (EDCs), pharmaceutical and personal care products (PPCPs), their daughter products and residual endocrine activity from municipal water supplies. 2. To determine the same in twelve separate waters subject to a range of(More)
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