66 S T A T. ]
PUBLIC LAW 590-JULY 18, 1952
(2) Section 215(b)(4) of such Act is amended to read as follows: "(4) Notwithstanding the preceding provisions of this subsection, in computing an individual's average monthly wage, there shall not be taken into account— " (A) any self-employment income of such individual for taxable years ending in or after the month in which he died or became entitled to old-age insurance benefits, whichever first occurred; " (B) any wages paid such individual in any quarter any part of which was included in a period of disability unless such quarter was a quarter of coverage; "(C) any self-employment income of such individual for any taxable year all of which was included in a period of disability." (3) Section 215(d) of such Act (relating to primary insurance benent for purposes of conversion table) is amended by adding at the end thereof the following new paragraph: "(5) In the case of any individual to whom paragraph (1), (2), or (4) of this subsection is applicable, his primary insurance benent shall be computed as provided therein; except that, for purposes of paragraphs (1) and (2) and subparagraph (C) of paragraph (4), any quarter prior to 1951 any part of which was included in a period of disability shall be excluded from the elapsed quarters unless it was a quarter of coverage, and any wages paid in any such quarter shall not be counted." (d) Section 216 of the Social Security Act (relating to certain definitions) is amended by adding after subsection (h) the following new subsection: "Disability; Period of Disability "(i)(1) The term 'disability' means (A) inability to engage in any substantially gainful activity by reason of any medically determinable physical or mental impairment which can be expected to be permanent, or (B) blindness; and the term 'blindness' means central visual acuity of 5/200 or less in the better eye with the use of correcting lenses. An eye in which the visual field is reduced to five degrees or less concentric contraction shall be considered for the purpose of this paragraph as having a central visual acuity of 5/200 or less. An individual shall not be considered to be under a disability unless he furnishes such proof of the existence thereof as may be required. "(2) The term 'period of disability' means a continuous period of not less than six full calendar months (beginning and ending as hereinafter provided in this subsection) during which an individual was under a disability (as defined in paragraph (1)). No such period with respect to any disability shall begin as to any individual unless such individual, while under such disability, files an application for a disability determination. Except as provided in paragraph (4), a period of disability shall begin on whichever of the following days is the latest: " (A) the day the disability began; " (B) the first day of the one-year period which ends with the day before the day on which the individual filed such application; or "(C) the first day of the first quarter in which he satisfies the requirements of paragraph (3). A period of disability shall end on the day on which the disability ceases. No application for a disability determination which is filed more than three months before the first day on which a period of disability can begin (as determined under this paragraph) shall be 93300 O - 53 - 52
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^2 USC 4i6.
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