It’s strictly forbidden to consult documents in the following situations:a)      Documents species in poor conditions marked with a red ball in the IDD’s List – indicate species in poor condition that are out of consultation;
Documentation undergoing through cleaning, still under restoration and preservation procedures or incorporation processes;
Alternative availability (Microfilmed or scanned species ) marked with a blue ball in the IDD’s List;
Species which require restrict consultation for legal or contractual obligation;