This program is mandated by Section 5 of the Toxics Substances Control Act (TSCA). The New Chemicals Program functions as a gatekeeper which can identify conditions-up to and including a ban on production-to be placed on the use of a new chemical before it is entered into commerce.
Currently, the newest version is MS Word 2010. Same with all the other different MS applications (PowerPoint, Excel, etc.)
Microsoft Word, part of the Microsoft Office Suite but also sold as a standalone application, is Microsoft's word processor. Its proprietary (but open-specification) DOC format is considered a de-facto standard, although from 2007 and above, Word uses DOCX.