To amend the African Growth and Opportunity Act relating to preferential treatment to apparel articles of lesser developed countries, and for other purposes.

[AI summary unavailable — showing source text] Africa Investment Incentive Act of 2006 - Amends the African Growth and Opportunity Act to extend duty-free treatment to imported apparel articles wholly assembled or knit-to-shape and wholly assembled, or both, in one or more lesser developed beneficiary sub-Saharan African countries (regardless of the country of origin of the fabric or the yarn used to make such articles) in an amount not to exceed a certain percentage of all apparel articles imported into the United States in the preceding 12-month period. Authorizes the President to remove preferential treatment for fabric or yarn of an article that was determined on the basis of fraud to: (1) be eligible for such treatment; or (2) not be available in commercial quantity. Grants preferential treatment to textiles that are products of a lesser developed beneficiary sub-Saharan African country and are wholly formed in one or more such countries from fibers, yarns, fabrics, fabric components, or components knit-to-shape that are the product of one or more such countries. Amends the Internal Revenue Code to establish a sub-Saharan economic activity credit. Extends the Generalized System of Preferences (GSP) Program. Authorizes limi…