System Installation Level I
Survey code: Y1
Monitoring System: Level I
Survey frequency: At system installment
PL1 have to be submitted if new plots are defined or in case that respective data has to be changed.
Only the information concerning new plots or plots with information updates has to be submitted.
ST1 have to be submitted generally every five years.
In case that one or more attributes have to be updated the complete description of the concerned stand has to be re-submitted.