Casualty collection point (CCP)
Or holding point, place at the edge of the inner safety perimeter where casualties are brought to for decontamination examination, initial treatment and/or decontamination.
Glossary Source
JRC EU CBRNe Glossary
(
EU Glossary on Chemical, Biological, Radiological, Nuclear, and Explosive risks
)
https://publications.jrc.ec.europa.eu/repository/bitstream/JRC128863/JRC128863_01.pdf