A code is a written collection of enforceable laws, rules or regulations that is usually organized by topic.
In the United States, these collections are published at the federal and state level, and address a vast array of legal issues. Examples include but are not limited to criminal codes, civil codes and tax codes.
An example of a code that most people are familiar with is the state motor vehicle code. These codes include all of the different rules, regulations and laws associated with operating a passenger vehicle, commercial vehicle or motorcycle in a given state. Laws, rules and regulations included in this type of code also pertain to the licensing and insurance of motor vehicles.