The full version of the GBER FAQs has now been published by the Commission (the previous version included Q&A only for Articles 1 to 35):
http://ec.europa.eu/competition/state_aid/legislation/practical_guide_gber_en.pdf
This full version addresses, in particular, a number of issues in relation to the interpretation of Article 56 GBER (investment aid for local infrastructures), including some comments on the criteria for the existence of aid in this context.