FERS: §844.201 General Requirements
844.201 General Requirements Title 5 – Part 844: Federal Employees’ Retirement System (FERS) Disability Retirement: Subpart B – Applications for Disability Retirement (a)(1) Except as provided in paragraphs (a)(3) and (a)(4) of this section, an application for disability retirement is timely only if it is filed with the employing agency before the employee or Member separates from service, or with the former employing agency or OPM within 1 year thereafter. (2) An application for disability retirement that is filed with OPM, an employing agency or former employing agency by personal delivery is considered filed on the date on which OPM,