Which of the following requires certification by a civil defense agency?
ARES
RACES✓Ճիշտ պատասխան
MARS
SKYWARN
Բացատրություն
RACES operation is tied to a civil defense organization, which must certify the station as registered and the operator as enrolled. ARES, MARS and SKYWARN each have their own arrangements, but none requires civil defense certification.