Pre-registration and payment for ASLS classes is required. To pre-register, register and pay on-line or send registration form and payment at least one week prior to first TSD class Thursday night session.

Courses advertised will not be available unless there are 6 students who have pre-registered and paid for a course. Do not assume that a course will be offered if you do not pre-register and pay at least a week before the semester begins. Students may not join a course after the second class meeting.

Click here to download the pdf registration form, print it and mail it, with payment (check or money order), to ASLS, P.O. Box 92345, Austin, TX 78709-2345. Make check payable to “ASLS.” Do NOT send check to TSD.


Click here to complete on-line registration form and submit electronically to ASLS. You can pay on-line using a Visa, MasterCard and American Express credit cards or mail us a check or money order, within 10 days. Credit cards accepted for on-line and on-site registration. Your registration is not valid without payment.

ASLS will email registered students approximately one week before the semester begins. If you register less than one week before classes begin, please e-mail to ensure registration in class requested.