Virginia v. Tennessee, 148 U.S. 503, 519 (1893). This could happen if a pact “shifted the balance of power between the states and the federal government,” formed coalitions of states that would diminish the power of the federal government or alter the balance of power between the states in the federal structure, or inappropriately assert themselves on a constitutionally set issue, is an issue over which Congress has authority. Buenger et al., loc. cit. Note 2, section 69. Many lists of Compacts in the National Center for Interstate Compacts database contain links to the websites of the intergovernmental agencies formed by these Compacts. Such websites of intergovernmental authorities, such as those of the Multi-State Tax Commission described above, may contain the Covenant, the Statute, other internal administrative documents, guidance documents for Member States, annual reports and other agency documents. Here are some examples of this type: Most early intergovernmental pacts resolved border disputes, but since the beginning of the 20th century, pacts have been increasingly used as an instrument of state cooperation.
 In some cases, an agreement creates a new government state agency responsible for managing or improving a common resource such as a seaport or public transportation infrastructure. One pact for which much information is available online is the Multistate Tax Compact, which came into effect in 1967. Its members include fifteen states and the District of Columbia. As treaties between States, covenants affect the rights and obligations of States parties (and their citizens); The U.S. Supreme Court has emphasized that the interests of non-party states could be a factor in deciding whether congressional approval is required. A covenant usually contains provisions on its purpose; the specific conditions relating to the subject matter of the Pact; in some cases, the establishment of an intergovernmental agency to administer the Covenant or any other mode of administration; sources of funding; and other contractual conditions such as dispute settlement, performance, termination of the Covenant or withdrawal of a member. .