Mr Geithner, who had such trouble understanding the tax code, is now the man in charge of the Internal Revenue Service.

盖特纳先生就不懂税法，他现在就任美国国税局负责人。

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The Internal Revenue Service regulations for the Housing Credit Program can be found under Section 42 of the Internal Revenue Code.

在财政内部的文件的第42 部分中可以找到，国内税收署制定的住宅信贷计划的规章。

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It's not often you see protestors outside a Treasury-Internal Revenue Service hearing on proposed tax code regulations.

FORBES: Magazine Article

Six years after this freebie was added to the tax code, the Internal Revenue Service is still tinkering with the details.

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While it's called a grant, the biotech credit is a variation of what Congress has been doing with individuals: Using the tax code and the Internal Revenue Service to deliver benefits it considers socially desirable in the form of refundable tax credits.

FORBES: Magazine Article