* Your high school's registrar or main office: This is the most common and usually the easiest method. Contact the high school directly by phone or email and ask about obtaining a transcript or diploma copy. They will likely have a process and a fee involved.
* Your school district's central office: If you can't reach your high school directly, or if it's closed, contact the central office of the school district that oversaw your high school.
* State Department of Education (or equivalent): If you have trouble getting it through the school, you may be able to contact your state's department of education. They might have records or be able to guide you to the proper place. Note that this is a last resort, as it will likely be more difficult.
* National Student Clearinghouse: This organization maintains transcripts and records for many schools but may not have your diploma itself. It's worth checking if you have already tried the above methods.
Before you start: Be prepared to provide information such as your full legal name at the time of graduation, your date of graduation, and possibly your date of birth. You may also need to pay a fee.