The undertakings referred to in Article R. 310-10-1, authorised on 4 July 1993 to conduct one or more of the classes of business referred to in Article R. 321-1 within the territory of the French Republic, and which comply with the permanent regulatory provisions relating to technical provisions, the solvency margin and the guarantee fund, as well as the undertakings referred to in 1° of Article L. 310-10-1, which comply with the same provisions, may obtain from the Autorité de contrôle des assurances et des mutuelles the removal of restrictive measures, such as mortgages, deposits or sureties, which had been imposed on them by virtue of the regulations previously applicable to them.