To be eligible for U.S. citizenship, also known as naturalization, you must meet the following general criteria:

You must be at least 18 years old.

You must have been a lawful permanent resident (LPR) of the United States for at least five years (or three years if you are married to a U.S. citizen).

You must have continuous residence in the United States for at least five years (or three years if you are married to a U.S. citizen).

You must have been physically present in the United States for at least half of the five-year period (or half of the three-year period if you are married to a U.S. citizen).

You must be able to read, write, and speak basic English.

You must have knowledge of U.S. government and history.

You must be a person of good moral character.

You must be willing to support and defend the United States and its Constitution.

Generally, the U.S. citizenship test must be taken in English. However, in some cases, an individual may be eligible for an exemption from the English language requirement or the civics test based on a medical condition or disability.

Additionally, individuals over the age of 50 who have had a green card for 20 years or over the age of 55 with a green card for 15 years may also be eligible for a modified version of the civics test, which includes fewer questions and may be taken in the individual's native language with the help of an interpreter.

If you are physically or mentally disabled, you may be eligible for an exemption or modification of certain requirements for naturalization, including the English language requirement, the civics test, and the continuous residence requirement. To qualify for an exemption or modification, you must provide documentation of your disability, such as a medical certification from a licensed medical professional.

The length of the citizenship process can vary depending on a variety of factors, such as your individual circumstances and the processing times at the U.S. Citizenship and Immigration Services (USCIS) office handling your application. Generally, the citizenship process takes an average of 2 to 12 months from the time you file your naturalization application to the time you attend your naturalization ceremony.

There are several reasons why an individual with a green card may choose to apply for U.S. citizenship:

Voting: As a U.S. citizen, you have the right to vote in federal elections, which allows you to have a say in the laws and policies that affect your life and your community.

Travel: U.S. citizens are allowed to travel freely in and out of the United States without worrying about the expiration of a visa or the risk of being denied entry to the country.

Family reunification: As a U.S. citizen, you may be able to sponsor more family members for immigration to the United States than you could as a green card holder.

Job opportunities: Some jobs may be available only to U.S. citizens, or may be more accessible to U.S. citizens than to non-citizens.

Protection from deportation: As a U.S. citizen, you are not subject to deportation, and you have the ability to petition for family members to be protected from deportation.

The questions for the U.S. Citizenship Test are based on U.S. government and history. The test includes 10 questions, selected at random from a pool of 100 possible questions. To pass the test, you must answer at least 6 out of 10 questions correctly.

You can find a list of the 100 possible questions on the U.S. Citizenship and Immigration Services (USCIS) website at the following link:

https://www.uscis.gov/citizenship/find-study-materials-and-resources/study-for-the-test