First, the two tiers exercise concurrent powers in a wide range of services.

There are "concurrent powers", as both the Commonwealth and States can make laws on these subjects.

In many situations of environmental regulations, state and federal governments have Concurrent powers, where each government is permitted to have its own regulation.

A further source of friction and confusion is found where authorities have concurrent powers; that is, an equal share in providing services.

Concurrent powers are powers in nations with a federal system of government that are shared by both the State and the federal government.

In these, Hughes enhanced state regulation of railroads by reviving the Cooley doctrine of "concurrent powers."

The framers rejected an alternative model, the Canadian, which has been described as "an allocation of exclusive powers to both levels of government, not concurrent powers."

Examples of the concurrent powers enjoyed by both the federal and State governments are: the power to tax, build roads, establish bankruptcy laws, and to create lower courts.

These contain "concurrent powers", in the sense that both the Commonwealth and States can legislate on these subjects, although federal law prevails in the case of inconsistency (Section 109).

The Austrian Constitution, Constitution of Germany, and Swiss Constitution enumerate few policy fields exclusive to the states, but enumerate extensive concurrent powers.

The federal and state governments share concurrent powers in several areas, including civil law, refugee and expellee matters, public welfare, land management, consumer protection, public health, and the collection of vital statistics.

Further, the Bundesrat must approve all legislation affecting policy areas for which the Basic Law grants the Länder concurrent powers and for which the Länder must administer federal regulations.

Most of the powers, including those of foreign affairs and defence, were concurrent powers, with the proviso that if there was a conflict between the federal and a state law, then the federal law "will prevail".

The doctrine of interjurisdictional immunity recognizes that the Canadian Constitution is based on an allocation of exclusive powers to both levels of government, not concurrent powers, although these powers are bound to interact.

"Concurrent powers" also exist, which may be exercised by either the states or the federal government, such as the power to repel invasions, and arguably including power to make legal tender (e.g. in federal territories or elsewhere).

County and district councils have concurrent powers in respect of museums and art galleries, country parks, conservation areas, footpaths, recreational facilities, local parks, and open spaces, sharing the last four functions with parish, town and community councils.

Meanwhile to the south, Gao Pian, military governor of Huainan Circuit (淮南, headquartered in modern Yangzhou, Jiangsu), had been killed in a mutiny and the Tang court conferred on Zhu Quanzhong concurrent powers as military governor of Huainan.