ACTA also considers measures to stop the flow of copyright infringing material from moving across borders. This led to some fears that there would be checks of computers and MP3 players to find pirated content. However, the outline makes that very unlikely, as it makes it clear the interest is only with industrial-scale importing and exporting of counterfeit material.
"Cross-border trade in counterfeit and pirated goods is a growing global problem that often involves organized criminal networks," the material reads. It said that ACTA might include "a de minimis exception that could permit travellers to bring in goods for personal use". The treaty would harmonize what "scale" of activity needs to be reached before infringement becomes criminal, and how the authorities will deal with it.
More Info: http://ustr.gov/ (PDF)