Final answer:
The Do-Not-Call Implementation Act allows agents to call a client for up to 18 months following a transaction and up to 3 months after an inquiry, but not after 9:00 PM local time.
Step-by-step explanation:
The law that governs regulations around the times an agent can call a client is the Do-Not-Call Implementation Act. According to this Act, a business entity typically may make telephone solicitations to a client for up to 18 months following a purchase or transaction, and may call for an inquiry for up to 3 months following a consumer's inquiry or application. Additionally, it is prohibited for solicitation calls to be made to consumers after 9:00 PM local time.