laid down in State legislation. Indebtedness is allowed only as a means of funding investments, with the concomitant adoption of amortisation plans and on the condition of a balanced budget for all authorities of each region, taken as a whole. State guarantees on loans contracted for this purpose are prohibited. Import, export or transit taxes between Regions are not permitted and the freedom of movement of persons or goods between Regions is protected, as well as the right of citizens to work in any part whatsoever of the national territory. The Government can intervene for bodies of the Regions, Metropolitan Cities, Provinces and Municipalities if the latter fail to comply with international rules and treaties or EU legislation, or in the case of grave danger for public safety and security, or when necessary to preserve legal or economic unity and in particular to guarantee the basic level of benefits relating to civil and social entitlements, regardless of the geographic borders of local authorities. The law lays down the procedures to ensure that subsidiary powers are exercised in compliance with the principles of subsidiarity and loyal co-operation. The Constitution establishes the bodies of each Region as the Regional Council, the Regional Executive and its president. The Regional Council exercises the legislative powers attributed to the Region as well as the other functions granted by the Constitution and the laws, among which also the possibility to submit bills to Parliament. The Regional Executive exercises the executive powers in the Region, and The President of the Executive represents the Region, directs the policy-making of the Executive and is responsible for it, promulgates laws and regional statutes, directs the administrative functions delegated to the Region by the State, in conformity with the instructions of the Government. The electoral system and limits to the eligibility and compatibility of the President, the other members of the Regional Executive and the Regional councillors is established by a regional law in accordance with the law of the Republic, which also establishes the term of elective offices. No one can belong at the same time to a Regional Council or to a Regional Executive and to either House of Parliament, another Regional Council, or the European Parliament. The Council elects a President and a Bureau from amongst its members. Regional councillors are not accountable for the opinions expressed and votes cast in the exercise of their functions. The President