The Privacy Act of 1974 protects citizens agains the sharing of personal data.
The Fair Debt Collection Practices Act (FDCPA) is a federal law that protects consumers from abusive or harassing debt collection practices. It sets guidelines for how debt collectors can communicate with consumers and prohibits practices such as making false statements or threats.
congress
City, governs cities and villages, State, governs states and Federal governs the country.
The Judicial Code governs federal courts.
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Banks and loan companies. The federal government has laws.
FARS Federal aquisition regulation
Try following the link http://www.ftc.gov/bcp/conline/pubs/credit/fdc.htm It should answer many of your questions regarding debt collection. If the link doesn't work, check out the Federal Trade Commission's website at www.ftc.gov and search for the Fair Debt Collection Practices Act, which governs what debt collectors can and cannot do.
Fiscal Law
Fiscal Law
There is OSHA - Occupational Safety & Health Administration which governs the working conditions for any commercial place. It is a federal agency under the department of labor.
In the USA the bankruptcy law is regulated by the Federal governs.