---
kind: "section"
citation: "10 C.F.R. § 835.206"
title: "10"
number: "835.206"
heading: "Limits for the embryo/fetus."
url: "https://uscodex.org/cfr/10/835.206"
---

# §835.206. Limits for the embryo/fetus.

- (a) The equivalent dose limit for the embryo/fetus from the period of conception to birth, as a result of occupational exposure of a declared pregnant worker, is 0.5 rem (0.005 Sv).
- (b) Substantial variation above a uniform exposure rate that would satisfy the limits provided in [§ 835.206(a)](#a) shall be avoided.
- (c) If the equivalent dose to the embryo/fetus is determined to have already exceeded 0.5 rem (0.005 Sv) by the time a worker declares her pregnancy, the declared pregnant worker shall not be assigned to tasks where additional occupational exposure is likely during the remaining gestation period.

## Notes

### Amendments

[58 FR 65485, Dec. 14, 1993, as amended at 72 FR 31926, June 8, 2007]

### Authority

Authority: 42 U.S.C. 2201, 7191; 50 U.S.C. 2410.

### Source

Source: 58 FR 65485, Dec. 14, 1993, unless otherwise noted.

### Amendments

[58 FR 65485, Dec. 14, 1993, as amended at 72 FR 31926, June 8, 2007]