DUI and citizenship application?

I am a US Immigration Attorney. DUI is not a crime of moral torpitude. Therefore, you can apply for citizenship. You will need to provide the docksheet reporting that episode and the sentence.

You need to respond to the questions accurately and truthfully. If the question asks "have you ever" then you need to disclose. You should retain an experienced immigration lawyer to review all the facts and advise you accordingly.

As my colleague mentioned, answer truthfully, Also, keep in mind that your moral character will come into play when your naturalization application is adjudicated. Your DUI, along with any other previous criminal arrests/charges you may have had, could potentially lead to a denial of your application. You really need to consult with an experienced immigration attorney and provide him/her with a copy of the charging documents, the court transcripts/order, and any other criminal arrest/charging documents you may have for previous offenses.

Yes you do and attach certified copies of any court record that remains regarding the DUI.