1. Professionals benefiting from the recognition of professional qualifications shall have a knowledge of languages necessary for practising the profession in the host Member State.
2. A Member State shall ensure that any controls carried out by, or under the supervision of, the competent authority for controlling compliance with the obligation under paragraph 1 shall be limited to the knowledge of one official language of the host Member State, or one administrative language of the host Member State provided that it is also an official language of the Union.
3. Controls carried out in accordance with paragraph 2 may be imposed if the profession to be practised has patient safety implications. Controls may be imposed in respect of other professions in cases where there is a serious and concrete doubt about the sufficiency of the professional's language knowledge in respect of the professional activities that that professional intends to pursue.
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