---
kind: "section"
citation: "10 C.F.R. § 835.603"
title: "10"
number: "835.603"
heading: "Radiological areas and radioactive material areas."
url: "https://uscodex.org/cfr/10/835.603"
---

# §835.603. Radiological areas and radioactive material areas.


Each access point to radiological areas and radioactive material areas (as defined at [§ 835.2](/cfr/10/835.2.md)) shall be posted with conspicuous signs bearing the wording provided in this section.

- (a) **Radiation area.** The words “Caution, Radiation Area” shall be posted at each radiation area.
- (b) **High radiation area.** The words “Caution, High Radiation Area” or “Danger, High Radiation Area” shall be posted at each high radiation area.
- (c) **Very high radiation area.** The words “Grave Danger, Very High Radiation Area” shall be posted at each very high radiation area.
- (d) **Airborne radioactivity area.** The words “Caution, Airborne Radioactivity Area” or “Danger, Airborne Radioactivity Area” shall be posted at each airborne radioactivity area.
- (e) **Contamination area.** The words “Caution, Contamination Area” shall be posted at each contamination area.
- (f) **High contamination area.** The words “Caution, High Contamination Area” or “Danger, High Contamination Area” shall be posted at each high contamination area.
- (g) **Radioactive material area.** The words “Caution, Radioactive Material(s)” shall be posted at each radioactive material area.

## Notes

### Amendments

[63 FR 59684, Nov. 4, 1998]

### 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

[63 FR 59684, Nov. 4, 1998]