The "English Language Unity Act of 2025" seeks to formally establish English as the official language of the United States. It mandates that all official functions of the Federal Government be conducted in English, though it includes specific exceptions for situations such as teaching languages, fulfilling requirements under the Individuals with Disabilities Education Act, and actions necessary for national security or public health and safety. This measure aims to preserve and enhance the role of English within federal operations. A key provision of the bill addresses naturalization , establishing a uniform English language testing standard for applicants. This standard requires individuals seeking naturalization to be able to read and generally understand the English language texts of the Declaration of Independence , the Constitution , and the laws of the United States. Additionally, all naturalization ceremonies would be conducted exclusively in English. The legislation further introduces general rules for the construction of English language texts of U.S. laws, stating that English language requirements and workplace policies are presumptively consistent with federal law. It specifies that any ambiguities in these texts should be resolved to protect rights retained by the people and powers reserved to the states. Finally, the bill directs the Secretary of Homeland Security to develop regulations for the naturalization English testing and establishes a National English Language Day .