In the United States, the governing immigration office for those requesting citizenship, green cards, work-visas, and various other types of legal acknowledgement from the United States is the U.S. Citizenship and Immigration agency. This is the overarching immigration office that possesses and processes all of the legal forms that are required for citizenship, regarding any specific circumstance.
This particular immigration office provides all the essential forms, the fundamental laws necessary for immigration into the United States, and utilities to help those who need extra guidance regarding the registration and legal processes surrounding immigration.
Furthermore, the U.S. Citizenship and Immigration Services also provide resources regarding news about laws and about the current struggles or repairs made to the immigration process. It is a strong governmental agency that is used to provide the rights of U.S. citizenship to individuals who qualify. It is also important regarding keeping those who do not have the credentials yet in the loop about what is necessary, and where to procure required aspects.
In the United Kingdom, the governing immigration office is referred to as Home Office Immigration. Home office immigration is the title of the agency, and it is where individuals can find information regarding temporary employment, visas, and information for obtaining citizenship in Britain. It is also a resource that helps individuals get acquainted with the customs of Britain, in preparation for the move there. Like the United States, the United Kingdom has specific criteria regarding immigration, forms, and person information aspects that are required in order to obtain formal acknowledgement by the government.