Truth in Quality Grading Act of 2005 - Amends the Federal Meat Inspection Act to define "beef," "lamb," "imported beef," "imported lamb," "United States beef," and "United States lamb." (Excludes from inclusion as "United States beef" or "United States lamb" beef or lamb produced from imported animals.)
Deems misbranded imported beef or imported lamb that bears a label indicating a quality grade issued by the Secretary of Agriculture (thereby prohibiting the use of such labels on such imported products).