In order to assess the potential aid over time, the Commission identified four periods in its decision to initiate the procedure, taking into account the application of the various Community provisions relevant to the analysis of potential aid measures.
Menetluse alustamise otsuses eristas komisjon võimalike abimeetmete analüüsimisel abi andmise aja jooksul toimunud arengu põhjal nelja perioodi, pidades silmas ühenduse eri asjakohaste õigussätete kohaldamist.