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.)
Word document is a proprietary format developed by Microsoft for its word processing software in 1983. It was used in Apple Mac, SCO Unix, OS/2 and Windows. It was called Multi-Tool Word. The first Word version is released in 1989.