The law of the United States comprises many levels of codified and uncodified forms of law, of which the most important is the United States Constitution, the foundation of the federal government of the United States. The Constitution sets out the boundaries of federal law, which consists of acts of Congress, treaties ratified by the Senate, regulations promulgated by the executive branch, and case law originating from the federal judiciary. Federal law that conflicts with the Constitution is invalid.
The Constitution and federal law are the supreme law of the land, thus preempting conflicting state and territorial laws in the 50 U.S. states and in the territories. However, the scope of federal preemption is limited because the scope of federal power is not universal. In the unique dual-sovereign system of American federalism (actually tripartite because of the presence of Indian reservations), states are the plenary sovereigns, while the federal sovereign possesses only the limited supreme authority enumerated in the Constitution. Indeed, states may grant their citizens broader rights than the federal Constitution as long as they do not infringe on any federal constitutional rights. Thus, most U.S. law (especially the actual "living law" of contract, tort, property, criminal, and family law experienced by the majority of citizens on a day-to-day basis) consists primarily of state law, which can and does vary greatly from one state to the next.
Animal law is a combination of statutory and case law in which the nature—legal, social or biological—of nonhuman animals is an important factor. Animal law encompasses companion animals, wildlife, animals used in entertainment and animals raised for food and research. The emerging field of animal law is often analogized to the environmental law movement 30 years ago]when?citation needed[.
Animal law issues encompass a broad spectrum of approaches—from philosophical explorations of the rights of animals to pragmatic discussions about the rights of those who use animals, who has standing to sue when an animal is harmed in a way that violates the law, and what constitutes legal cruelty. Animal law permeates and affects most traditional areas of the law – including tort, contract, criminal and constitutional law. Examples of this intersection include:
A hunting license is a regulatory or legal mechanism to control recreational and sports hunting.
Hunting may be regulated informally by "unwritten law", "self restraint", or "morality" and by laws "enforced by government authority."
A driver's permit, learner's permit, learner's license or provisional license, is a restricted license that is given to a person who is learning to drive, but has not yet satisfied the requirements to obtain a driver's license. Having a driver's permit for a certain length of time is usually one of the requirements (along with driver's education and a road test) for applying for a full driver's license. To get a learner's permit, one must typically pass a written permit test about rules of the road, although the process varies between jurisdictions. With written documentation and permission from your legal guardian and if you have a learner's permit you may be allowed to drive to and from school and work. You may be allowed to drive to and from school with a permit in California, Arizona, Texas, Oklahoma, Florida, Nevada and Washington, Michigan
In the United States, driver's licenses are issued by each individual state and the territories (including Washington, D.C.), rather than the federal government because of the political concept of federalism. Drivers are normally required to obtain a license from their state of residence and all states recognize each other's licenses for temporary visitors subject to normal age requirements. A state may also suspend an individual's driving privilege within its borders for traffic violations. Many states share a common system of license classes, with some exceptions, and commercial license classes are standardized by federal regulation at 49 CFR part 383.