Article 90: [Federal highways] 1. The Federation shall be the owner of the former Reich motorways and
highways.
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Reference to country's history
2. The Länder, or such self-governing corporate bodies as are competent under
Land law, shall administer the federal motorways and other federal highways
used by long-distance traffic on federal commission.
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Subsidiary unit government
3. On application of a Land, the Federation may assume the administration of
federal motorways and other federal highways used by long-distance traffic
insofar as they lie within the territory of that Land.
Article 91: [Internal emergency] •
Emergency provisions
1. In order to avert an imminent danger to the existence or free democratic basic
order of the Federation or of a Land, a Land may call upon police forces of other
Länder, or upon personnel and facilities of other administrative authorities and
of the Federal Border Police.
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Subsidiary unit government
2. If the Land where such danger is imminent is not itself willing or able to combat
the danger, the Federal Government may place the police in that Land and the
police forces of other Länder under its own orders and deploy units of the
Federal Border Police. Any such order shall be rescinded once the danger is
removed, or at any time on the demand of the Bundesrat. If the danger extends
beyond the territory of a single Land, the Federal Government, insofar as is
necessary to combat such danger, may issue instructions to the Land
governments; the first and second sentences of this paragraph shall not be
affected by this provision.
VIIIa: Joint Tasks Article 91a: [Joint tasks - Responsibility for expenditure] 1. In the following areas the Federation shall participate in the discharge of
responsibilities of the Länder, provided that such responsibilities are important
to society as a whole and that federal participation is necessary for the
improvement of living conditions (joint tasks):
