The Rehabilitation Act prohibits discrimination on the basis of disability in programs conducted by Federal agencies, in programs receiving Federal financial assistance, in Federal employment, and in the employment practices of Federal contractors. There are various sections of the Rehabilitation Act that may apply to different situations. Section 501 requires affirmative action and nondiscrimination in employment by Federal agencies of the executive branch. Section 503 requires affirmative action and prohibits employment discrimination by Federal government contractors and subcontractors with contracts of more than $10,000. Section 504 states that "no qualified individual with a disability in the United States shall be excluded from, denied the benefits of, or be subjected to discrimination under" any program or activity that either receives Federal financial assistance or is conducted by any Executive agency or the United States Postal Service. Each Federal agency has its own set of section 504 regulations that apply to its own programs.