Basic introduction of US Immigration Service

As the core law enforcement agency of American immigration law, the US Immigration Bureau holds the power of life and death of every immigrant applicant, and its office responsibilities and operational procedures are also worth knowing. The US Immigration Bureau is subordinate to the US Department of Justice, and the enforcement power of immigration law belongs to the Minister of Justice. However, the Minister of Justice usually authorizes the Immigration Bureau, so the Immigration Bureau has become the core law enforcement agency of immigration law, responsible for handling immigration and non-immigration applications, foreigners' entry and exit, border patrol, arrest and expulsion of illegal foreigners, refugee review, and punishment of illegal employment. The responsibilities of the US Immigration Service are detailed and diverse. The four regional immigration service centers that directly accept immigrant and non-immigrant applications, as well as district offices and sub-offices that handle daily immigration affairs, are the most common for ordinary foreigners. Under the director's office, deputy director's office, assistant director's administrative planning office, assistant director's administrative executive office, assistant director's administrative policy office, assistant director's administrative management office and other institutions, each institution is responsible for maintaining the daily work of the entire immigration bureau.

In the decision-making power of visa application, embassies and consulates outside the United States have almost absolute conscious power. On the one hand, it ensures the absolute authority of immigration law enforcement power, on the other hand, it also embodies the characteristics of standardization. Even in the processing of applications, it is just the opposite with other embassies and consulates abroad. For example, in terms of the relative restriction of the right of review, the decisions of the administrative appeal office of the General Administration of Immigration, the immigration judge, the immigration appeal board and the federal court on immigration appeal are binding on the immigration bureau.

When the Immigration Bureau refuses the application, all applicants have the opportunity to appeal to the federal court. For another example, in terms of auditing standards, because most applications are accepted by the four service centers of the Immigration Bureau, the auditing standards are basically the same. It is worth mentioning that, contrary to overseas embassies and consulates, the Immigration Bureau will give a written notice of any rejected application and tell them the detailed reasons for rejection.