Final answer:
An agent is required to keep replacement forms on file for at least a certain number of years, usually seven, for record-keeping and compliance purposes.
Step-by-step explanation:
Keeping replacement forms on file for at least a certain number of years is a common practice in many industries, including business and finance.
The exact number of years that an agent is required to keep replacement forms on file may vary depending on the specific industry and country. However, a typical requirement is to keep these forms on file for a minimum of seven years.
This requirement is important for record-keeping and compliance purposes.