Article D4624-61 of the French Labour Code
The main employer’s inter-company occupational health and prevention service will assess, in the light of the information available to it, in particular that provided by the worker’s employers, whether the worker meets the conditions laid down in Article D. 4624-59. Where necessary, the employer may ask his worker to inform him of the conclusion of other employment contracts with one or more other employers during the term of his contract,…