The Program Guide for Professors and the Tri-Agency Guide on Financial Administration contain information that will be needed by applicants and NSERC award holders. These guides supersede all previous statements by NSERC on award guidelines. NSERC may, without notice, alter the programs or the terms and conditions of the awards. Any major changes will be announced immediately on NSERC's Web site and the effective date will be the date indicated at the bottom of the relevant web page.