It's simple. If you're applying to law school, then you'll be required to register with the Credential Assembly Service (CAS). The CAS is managed by the same organization that administers the LSAT, the Law School Admission Council.
The CAS is actually designed to make your life easier. It combines your transcripts, test scores, and evaluations into a single report that it sends to law schools when you apply. Plus, CAS adjusts your grades to a universal scale so that law schools can evaluate their applicants on the same basis.
Your online CAS file will contain:
The CAS recommends registering six weeks before you apply to law schools, but we think it can't hurt to leave yourself a little more time than that. Aim to register in July by logging into the Law School Admission Council's website or by filling out a paper form, which you can request online. Your subscription lasts for five years.
Next, contact your undergrad school in August to request that they send your transcript to the CAS. If you'd like to send letters of rec through CAS, too, (it's an optional service), then download or send a hard copy of the Letter of Recommendation form to your recommenders. CAS will collect up to three letters. Your LSAT scores will automatically become a part of your report after you take them (you need at least one score on file before the CAS can start sending your reports). When you submit your application to a law school, the school will request your report from the CAS.
The fee to register for the CAS includes a report to one school. You'll also need to pay for each additional report you send. Look into LSAC's fee waiver program if you absolutely cannot cover the costs of taking the LSAT and CAS reports. The LSAC website has all the details about registering, paying for, and sending reports. Check the site often to make sure you're staying on track.
You're done! Now you can sit back and (ha!) relax.