If an open use observation has more than one missing station due to system trouble and/or very severe weather conditions (e.g. strong wind due to a typhoon), the PI can request recovery observations within a year of receiving the correlated data. The PI should resubmit the proposal in which PI should clarify the problems in the previous observations and the necessity of recovery observations for your scientiﬁc goal. The KaVA TAC will consider the time allocation of the recovery observations for the next season. If you have any questions, please send an email to kavaprop (at-mark) kasi.re.kr.