Выражение встречается в следующем контексте: Текст о правах детей-инвалидов.

The Rehabilitation Act of 1973, commonly referred to as "§ 504," is a nondiscrimination statute enacted by the United States Congress. The purpose of the Act is to prohibit discrimination and to assure that disabled students have educational opportunities and benefits equal to those provided to non-disabled students.
An eligible student under § 504 is a student who (a) has, (b) has a record of having, or (c) is regarded as having, a physical or mental impairment which substantially limits a major life activity such as learning, self-care, walking, seeing, hearing, speaking, breathing, working, and performing manual tasks.

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