An appeal against a formal notice as provided for in the second paragraph of article L. 4723-1 must be lodged with the Regional Director for Business, Competition, Consumer Affairs, Labour and Employment before the expiry of the time limit for compliance set in application of articles L. 4721-2 or L. 4721-6 and, at the latest, within fifteen days of the formal notice.
The appeal against a request for verification provided for in the second paragraph of article L. 4723-1 shall be lodged no later than fifteen days following the request for verification.
These appeals have suspensive effect.
They shall be made by registered letter with acknowledgement of receipt.