FREQUENCY OF EXAMINATIONS
ANNEX VIISupplementary provisions
ANNEX VII FREQUENCY OF EXAMINATIONS The minimum frequency of the periodic checks shall be as follows: (a) linguistic knowledge (only for non-native speakers): every three years or after any absence of more than one year; (b) infrastructure knowledge (including route and operation rules knowledge): every three years or after any absence of more than one year on the relevant route; (c) knowledge of rolling stock: every three years.