We actually use both. The Restricted Area is defined in 10CFR20 and is
typically spelled out in the licensees UFSAR. An RCA would be set-up in
localized areas within the RCA. Our RCA signs follow the same convention Mr.
Adams describes below.
From: Adams, Richard W. [mailto:richard.ad...@xenuclear.com]
Sent: Wednesday, October 12, 2016 10:16 AM
To: Beth Heyeck; powernet@HPSpowernet.org
Subject: [EXTERNAL] [powernet] RE: RCA Posting
Any posting that is less than a High Radiation Area should be made in the same
orientation and design as the Radiation Area sign.
From: Beth Heyeck [mailto:eahey...@aep.com]
Sent: Tuesday, October 11, 2016 7:18 PM
Subject: [powernet] RCA Posting
While implementing the industry standards for HRA/VHRA posting shapes/signs, we
are also transitioning from "Restricted Area" to "Radiologically Controlled
There's no guidance that we can find on what the shape/wording needs to be on
the Radiologically Controlled area sign. Does your plant use a sign (or signs)
1. The words "Radiologically Controlled Area"
2. The acronym "RCA"
3. The shape of a vertically aligned rectangle
4. The shape of a horizontally aligned rectangle
5. Anything else on the sign, besides a trefoil?
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