Final answer:
Designated Agency is a type of agency representation used in the practice of real estate in Washington that is not addressed under Washington agency law. It involves an agent being designated to represent a specific client and owing fiduciary duties only to that client.
Step-by-step explanation:
In the practice of real estate in Washington, there is a type of agency representation called Designated Agency that is not addressed under Washington agency law but is commonly used. In Designated Agency, a real estate broker designates specific agents within their brokerage to represent buyers and sellers. Each designated agent acts solely on behalf of their assigned client and owes fiduciary duties only to that client.