Pub. L. 102-486, tit. XIX, subtit. B, sec. 1938
DEDUCTION FOR EXPENSES AWAY FROM HOME.
SEC. 1938. DEDUCTION FOR EXPENSES AWAY FROM HOME. (a) In General.— Section 162(a) is amended by adding at the end the following new sentence: “For purposes of paragraph (2), the taxpayer shall not be treated as being temporarily away from home during any period of employment if such period exceeds 1 year.” (b) Effective Date.— The amendment made by subsection (a) shall apply to costs paid or incurred after December 31, 1992.