Have you had that email about the FTZ's?

I had one this morning so I did a search on Bing.  This is what I found.

An older page explains it http://ia.ita.doc.gov/ftzpage/tic.html click on the link to read a very long list of questions and answers, this is just the first one scroll down for the updated.

FOREIGN TRADE ZONES
June 2000
By Ian MacLeod
Trade Information Center, Trade Development

What is a Foreign Trade Zone?

Foreign Trade Zones (FTZs) were created in the United States to provide special customs procedures to U.S. plants engaged in international trade-related activities. Duty-free treatment is accorded items that are processed in FTZs and then reexported, and duty payment is deferred on items until they are brought out of the FTZ for sale in the U.S. market. This helps to offset customs advantages available to overseas producers who compete with domestic industry. The Foreign-Trade Zones (FTZ) Board (composed of representatives from the U.S. Departments of Commerce and Treasury) has its operational staff in the International Trade Administration's Import Administration.
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This page is updated information:  http://ia.ita.doc.gov/ftzpage/  and has many links to other information.
What's New:
List of Received 2010 Annual Reports
UPDATED 1/19/2011 - Free Forums on Proposed Regulatory Changes

Information on Proposed FTZ Regulations
2009 Annual Report to Congress Now Available
Adjustments to Alternative Site Framework
Information on Cases
Case Timing and Case Status
List of Cases with Open Public Comment Period
New to FTZs?
Start here with FAQ's, articles
and other information. List of FTZs

Zones are listed by state and include contact information and subzones.

How to Apply

Forms, guidelines, instructions

and everything you need to know

about FTZ applications. Already in a Zone?

Information for operators

and users, including Annual Report

forms and more.

FTZ Manufacturing Center

Information and Tools Designed for

Small & Medium-Sized Manufacturers. Reading Room

Federal Register Notices, Applications and Comments Received.

Information for CBP

Export Assistance Centers
Export.gov
ITA Privacy Policy

For information on all the states and alist of their zones go here: http://ia.ita.doc.gov/ftzpage/letters/ftzlist-map.html

My advice is to read it all, or as much as you have time for.  If you find anything startling please report it back to me by email.