2005 CE
The Combat Methamphetamine Epidemic Act is passed

The Combat Methamphetamine Epidemic Act was passed by U.S. Congress in 2005 (and became effective in March 2006). The act bans over-the-counter sales of cold medicines that contain the ingredient pseudoephedrine, which is commonly used to make methamphetamine. The sale of cold medicine containing this ingredient is limited to being sold behind the counter, making it more difficult to obtain in large quantities. In addition, the quantity of pseudoephedrine that an individual can purchase each month is limited and photo identification is required at the time of purchase.

Source: Legal Requirements for the Sale and Purchase of Drug Products (2014). U.S. FDA.