Most colleges and universities require that you submit an official high school transcript as part of your application.
You will be sending your 6th Semester Transcript which shows all courses, grades, and credit awarded through your junior year.
Create an account in Parchment. You will order a copy of your transcript for yourself to use to fill out SRARs and to order transcripts to be sent to colleges if you're not applying with Common App (If you are using Common App, your counselor will send your transcript for you).
Request your transcript at least two weeks before a college's application deadline or at the time you submit your application.
Some colleges require that you self-report the information on your transcript instead of sending the actual transcript. Be sure you're checking the freshman admission page for How to Apply to see which schools use Self-Reporting (Texas A&M, UTSA, UH and the University of California schools use Self-Reporting).
If you've taken courses at ACC, most colleges will want you to send your ACC transcript as well. You can find directions to send your ACC transcript here.
Once you complete a University of Texas at Austin On Ramps course and have claimed your college credit, you can find out how to order your transcript here.