I did a little poking around on the ole' interwebs today, and discovered a few sites I think are helpful. So, herewith, are the links, and I hope perhaps you may find them helpful as well. Best wishes, Debbie

Description of various set-ups, HUD:

http://www.huduser.gov/publications/pdf/foundations_guide.pdf

FEMA GUIDE to home safety in disasters:

http://www.fema.gov/media-library-data/20130726-1502-20490-8377/fema_p85.pdf

Complete tie-down instructions from Foremost Insurance, one of the few insurance companies that insure mobile/manufactured homes:

http://www.foremost.com/mygreathome/mobile-home-repair/exterior/how-to-install-tie-downs-and-anchors.asp

Tie-down (anchor) requirements as recent as 2009, with an interesting history of how these regulations evolved over the years at HUD:

http://wchapa.org/wp-content/uploads/2013/02/Tie-Downs.pdf

Permanent foundation guides for manufactured homes, HUD:

http://portal.hud.gov/hudportal/HUD?src=/program_offices/administration/hudclips/guidebooks/4930.3G

FAQs on permanent foundation certifications for HUD, FHA, VA. Although this is put out by an engineering firm that specialises in certifying manufactured homes, their FAQ section is great and can answer many FAQs, no matter where you live:

http://www.foundationcertifications.com/faq_fi.html?question=What+are+some+of+the+requirements+for+a+FHA%2FHUD+manufactured+home+foundation+certification%3F&num=2

A multi-hazard foundation and installation guide from FEMA:

http://www.fema.gov/media-library-data/20130726-1501-20490-7051/fema_p85_ch2.txt

And finally, as usual, WiseGeek puts it all in easy to understand vocabulary:

http://www.wisegeek.com/what-are-the-different-kinds-of-mobile-home-foundations.htm