Same Employer Structure Matters
The temporary-assignment provision requires Washington work for the same employer as in the investigator’s state of permanent residence. Ask who the employer is and how the proposed work satisfies that condition.
Last updated:
Sometimes, under limited conditions. Before an out-of-state investigator works in Washington, ask which authority applies, what credentials support it and how the assignment fits the time and employment requirements. Advertising nationwide service does not establish Washington authority.

The two limited paths below have different conditions and are not the same as full Washington licensure. Get a specific explanation for the proposed assignment before work begins.
| Question | Why It Matters | What a Clear Answer Sounds Like |
|---|---|---|
| Are you relying on Washington's thirty-day cross-state rule? | Washington allows only limited in-state operation under that path, not open-ended Washington work. | Under RCW 18.165.120, the investigator must be properly registered and certified in another state whose requirements the Washington director finds at least equal to Washington's minimum requirements, and must stay within thirty days of in-state operation per year. |
| Are you relying on a temporary-assignment path? | Washington separately recognizes a temporary-assignment path tied to a valid similar card and a same-employer structure. | The temporary-assignment provision concerns a valid license, registration, identification or similar card issued by another state, and Washington work for the same employer as in the investigator's state of permanent residence, for no more than ninety days. |
| Are you fully Washington-licensed? | Limited interstate authority is not the same thing as full Washington licensure. | If the answer is no, the investigator should say that plainly instead of blurring a limited allowance into a Washington license. |
The temporary-assignment provision requires Washington work for the same employer as in the investigator’s state of permanent residence. Ask who the employer is and how the proposed work satisfies that condition.
Neither allowance authorizes indefinite Washington work. The investigator should identify the applicable limits and explain how the work stays within them.
Ask which license or limited statutory provision authorizes this particular work in Washington. A broad service-area claim does not answer that question.
Under RCW 18.165.140(3), a person using the temporary-assignment provision may not solicit business in Washington or represent themselves as licensed in Washington.
The investigator should distinguish a Washington license from a limited allowance and accurately describe the credentials they hold.
Pause the proposed work if the investigator cannot identify the applicable authority or explain its conditions. Resolve that question before providing payment for Washington fieldwork.
Identify where the residence, school or move-related facts need to be checked. Each location affects who can lawfully perform the work and what records are available.
Exchanges, residence use and caregiving may occur in different states. Define the locations and time periods before choosing an investigator for each part of the assignment.
If a current address or movement history extends beyond Washington, identify the states involved. An investigator’s authority in one state should not be assumed to cover work in another.
When observation or corroboration is needed on both sides of a state line, specify who will perform each part and the authority relied on. The plan should remain consistent with relevant court orders.
Ask for the specific license or statutory provision and an explanation of how its conditions apply to the assignment.
Request the home-state credential details and verify current status. For the thirty-day path, the Washington director’s equivalency finding is also part of the rule.
Confirm the planned dates and how the investigator accounts for the applicable limit. A short assignment does not by itself establish that all other conditions are met.
List the work locations, methods and responsible investigator for each part. This helps you verify authority and understand what findings each assignment is expected to produce.
Ask for the actual authority behind the statement, including any limits on duration, solicitation or employment structure.
Experience may be relevant to competence, but does not answer the licensing question. Request a clear explanation of Washington authority.
For the temporary-assignment path, verify the same-employer relationship and credential requirements. The assignment’s label alone does not satisfy those conditions.
Compare the advertised service with the scope of the claimed authority. Seek clarification if open-ended Washington work is offered under a limited provision.
No. Ask for the particular Washington license or limited provision relied on, and verify that the conditions fit the assignment.
No. The temporary-assignment provision has specific credential, employer, duration and representation limits. It should not be presented as full Washington licensure.
An attorney’s involvement does not itself establish the investigator’s authority. Verify credentials and the applicable conditions for the work proposed in Washington.
Consider one when the work is centered in Washington or may extend beyond a limited interstate allowance. Verify the actual license and relevant experience; an office location alone does not establish authority.
Identify the states, dates and factual questions involved before hiring. Family Private Investigator’s fieldwork is in Washington from our Tacoma office; ask about the Washington portion of the assignment and verify separately any authority needed elsewhere.