Common law is practiced in Canada (excluding Quebec), Australia, New Zealand, most of the United Kingdom (England, Wales, and Northern Ireland), South Africa, Ireland, India (excluding Goa), Pakistan, Hong Kong, the United States (on state levels excluding Louisiana), Bangladesh, and many other places. Several others have adapted the common law system into a mixed system; For example, Nigeria operates largely on a common law system in the southern states and at the federal level, but also incorporates religious law in the northern states.