---
kind: "section"
citation: "20 C.F.R. § 404.1509"
title: "20"
number: "404.1509"
heading: "How long the impairment must last."
url: "https://uscodex.org/cfr/20/404.1509"
---

# §404.1509. How long the impairment must last.


Unless your impairment is expected to result in death, it must have lasted or must be expected to last for a continuous period of at least 12 months. We call this the duration requirement.


## Notes

### Authority

Authority: 42 U.S.C. 402, 405(a)-(b) and (d)-(h), 416(i), 421(a) and (h)-(j), 422(c), 423, 425, 902(a)(5), and 1320e-3; sec. 211(b), Pub. L. 104-193, 110 Stat. 2105, 2189; sec. 202, Pub. L. 108-203, 118 Stat. 509 (42 U.S.C. 902 note).

### Source

Source: 45 FR 55584, Aug. 20, 1980, unless otherwise noted.