This rule would set out the Department of the Treasury's (Treasury) rules for implementing section 504 of the Rehabilitation Act of 1973, as amended (section 504), for Treasury’s programs offering Federal financial assistance. Section 504 prohibits discrimination on the basis of disability in programs or activities receiving Federal financial assistance. Section 504 and the section 504 coordination regulation (coordination regulation), codified at 28 CFR 41, require that all agencies that extend Federal financial assistance issue agency-specific regulations implementing section 504. Treasury recipients have been subject to section 504 since its effective date in 1973. Accordingly, this rule would not substantially change the existing duty of recipients of financial assistance from Treasury to refrain from discrimination on the basis of disability. This proposed rule fulfills the obligation of Treasury to issue agency-specific rules under the law, clarifies the responsibilities of recipients of financial assistance from Treasury under section 504, and describes the Treasury investigation and enforcement procedures to ensure compliance.