---
kind: "unit"
title: "10"
title_heading: "Armed Forces"
key: "stE/ptII/ch1209"
level: "chapter"
label: "Chapter 1209"
heading: "Active Duty"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/10/stE-ptII-ch1209"
sections_count: 25
---

# Chapter 1209 — Active Duty

Title 10 — Armed Forces › Subtitle E — Reserve Components › Part II — Personnel Generally

## Sections

- [§12301. Reserve components generally](/usc/10/12301.md)
- [§12302. Ready Reserve](/usc/10/12302.md)
- [§12303. Ready Reserve: members not assigned to, or participating satisfactorily in, units](/usc/10/12303.md)
- [§12304. Selected Reserve and certain Individual Ready Reserve members; order to active duty other than during war or national emergency](/usc/10/12304.md)
- [§12304a. Army Reserve, Navy Reserve, Marine Corps Reserve, and Air Force Reserve: order to active duty to provide assistance in response to a major disaster or emergency](/usc/10/12304a.md)
- [§12304b. Selected Reserve: order to active duty for preplanned missions in support of the combatant commands](/usc/10/12304b.md)
- [§12305. Authority of President to suspend certain laws relating to promotion, retirement, and separation](/usc/10/12305.md)
- [§12306. Standby Reserve](/usc/10/12306.md)
- [§12307. Retired Reserve](/usc/10/12307.md)
- [§12308. Retention after becoming qualified for retired pay](/usc/10/12308.md)
- [§12309. Reserve officers: use of in expansion of armed forces](/usc/10/12309.md)
- [§12310. Reserves: for organizing, administering, etc., reserve components](/usc/10/12310.md)
- [§12311. Active duty agreements](/usc/10/12311.md)
- [§12312. Active duty agreements: release from duty](/usc/10/12312.md)
- [§12313. Reserves: release from active duty](/usc/10/12313.md)
- [§12314. Reserves: kinds of duty](/usc/10/12314.md)
- [§12315. Reserves: duty with or without pay](/usc/10/12315.md)
- [§12316. Payment of certain Reserves while on duty](/usc/10/12316.md)
- [§12317. Reserves: theological students; limitations](/usc/10/12317.md)
- [§12318. Reserves on active duty: duties; funding](/usc/10/12318.md)
- [§12319. Ready Reserve: muster duty](/usc/10/12319.md)
- [§12320. Reserve officers: grade in which ordered to active duty](/usc/10/12320.md)
- [§12321. Reserve Officer Training Corps units: limitation on number of Reserves assigned](/usc/10/12321.md)
- [§12322. Active duty for health care](/usc/10/12322.md)
- [§12323. Active duty pending line of duty determination required for response to sexual assault](/usc/10/12323.md)