Article 13 (2) (b) shall apply subject to the following exceptions and circumstances:
A personn ormally self-employed inthe territory of a MemberState and who performs work in the territory of another Member State shall continue to be subject to the legislation of the firstMember State, provided that the anticipated duration of the work does not exceed 12 months.
If the duration of the work to be done extends beyond the duration originally anticipated, owing to unforeseeable circumstances, and exceeds 12 months, the legislation of the first Member State shall continue to apply until the completion of such work, provided that the competent authority of the Member State in whose territory the person concerned hasentered to perform the work in question or the body appointed by that authority gives its consent; such consent must be
A personn ormally self-employed inthe territory of two or more Member States shall be subject to the legislationof the Member State inwhose territory he resides if he pursues any part of his activity inthe territory of that Member State. If he does not pursue any activity inthe territory of the Member State inwhich he resides, he shall be subject to the legislationof the Member State in whose territory he pursue his mainactivity. The criteria used to determine the principal activity are laid down in the Regulation referred to in Article 98.
A person who is self-employed in an undertaking which has its registered office or place of business in the territory of one Member State and which straddles the common frontier of two Member States shall be subject to the legislationof the Member State in whose territory the undertaking has its registered office or place of business.
If the legislationto which a person should be subject in accordance with paragraph 2 or 3 does not enable that person, even on a voluntary basis, to join a pension scheme, the person concerned shall be subject to the legislationof the other Member State which would apply apart from these particular provisions, or should the legislations of two or more Member States apply in this way, he shall be subject to the legislation decided on by common agreement amongst the Member States concerned or their competent authorities.