Final answer:
The validity period for a pharmacy tech registration typically is two years, but it can vary based on local regulations.
Step-by-step explanation:
The duration of a pharmacy technician registration varies by jurisdiction, as different states or countries may have different rules and regulations. Generally speaking, in many areas, a pharmacy technician registration is valid for two years before it needs to be renewed. However, it's important to check with the local pharmacy board or regulating body for the specific duration in the region where the pharmacy technician practices, as requirements can differ.