This change process has resulted in virtually all web pages on the Forms web site that had an extension of .html being changed to be .php.

Follow up:

While the fact is appreciated that this change could obsolete numerous users' bookmarks, the belief is that this is justified by offering potential present and future benefits that will offset that. This is part of an ongoing campaign to increase capabilities of the entire National Web Site. Should any difficulties be discovered, please notify the Help Desk using the link in the footer below, providing an indication of the nature and location of the problem.