Take advantage of this offer to save 30% on a three year subscription for any participating Autodesk software. You must trade in your perpetual license to qualify. Your perpetual license serial number will act as the Autodesk promotion code when entered in the correct form during checkout. The following software is included: AutoCAD®, Revit®, Civil 3D®, Inventor®, Fusion 360™, 3ds Max®, Maya®, our new industry collections, and more. Furthermore, LT family software can be traded in for any eligible 3-year subscriptions to Autodesk products, including industry collections with single-user access. To activate the promotion code for Autodesk and trade in your license, select the product you will be purchasing from the list of software that is presented on the page that opens and submit your perpetual license serial number in the form that opens when you click on the link for a participating product. After you have done so, the new 3-year product subscription will be entered into your shopping cart with the discount applied. This offer will be valid through April 21, 2017 in the USA and Canada. Educational licenses including new, upgrades and migrations, and education-to-commercial transfers will not be given any discounts associated with Autodesk promotion codes. Autodesk reserves the right to terminate, suspend or alter part of or this entire offer at any time without warning, for any reason in its sole discretion. Discounts provided by promotion codes for Autodesk, along with pricing of Autodesk software are subject to change. To utilize this Autodesk promotion code offer, you agree to discontinue use of any traded-in perpetual licenses.