📦
security safety
Window Status Cards
OK / Help in the window — a block that can be read from the street.
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About this tool
Green OK / red Help cards (CERT doctrine) so a walking patrol can skip the houses that already said they are fine. Paper, tape, a shared meaning. Not a substitute for knocking when the card is missing. Terrarium is not a CERT program, not a county OEM, and not FEMA-endorsed. This is a handshake: shared language and a place to start, not a substitute for official response.
What it adds
Strongest axes
Specifications
restricted
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logistics
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requirements
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accessibility
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coordination
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circularity
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