---
kind: "section"
citation: "10 C.F.R. § 63.321"
title: "10"
number: "63.321"
heading: "Individual protection standard for human intrusion."
url: "https://uscodex.org/cfr/10/63.321"
---

# §63.321. Individual protection standard for human intrusion.

- (a) DOE must determine the earliest time after disposal that the waste package would degrade sufficiently that a human intrusion (see [§ 63.322](/cfr/10/63.322.md)) could occur without recognition by the drillers.
- (b) DOE must demonstrate that there is a reasonable expectation that the reasonably maximally exposed individual receives, as a result of the human intrusion, no more than the following annual dose:
  - (1) 0.15 mSv (15 mrem) for 10,000 years following disposal; and
  - (2) 1.0 mSv (100 mrem) after 10,000 years, but within the period of geologic stability.
- (c) DOE's analysis must include all potential environmental pathways of radionuclide transport and exposure, subject to the requirements of [§ 63.322](/cfr/10/63.322.md).

## Notes

### Amendments

[74 FR 10829, Mar. 13, 2009]

### Authority

Authority: Atomic Energy Act of 1954, secs. 51, 53, 62, 63, 65, 81, 161, 182, 183, 223, 234 (42 U.S.C. 2071, 2073, 2092, 2093, 2095, 2111, 2201, 2232, 2233, 2273, 2282); Energy Reorganization Act of 1974, secs. 201, 202, 206, 211 (42 U.S.C. 5841, 5842, 5846, 5851); 42 U.S.C. 2021a; National Environmental Policy Act of 1969 (42 U.S.C. 4332); Nuclear Waste Policy Act of 1982, secs. 114, 117, 121 (42 U.S.C. 10134, 10137, 10141); 44 U.S.C. 3504 note.

### Source

Source: 66 FR 55792, Nov. 2, 2001, unless otherwise noted.

### Amendments

[74 FR 10829, Mar. 13, 2009]