The difference between a professional interpreting agency and an order-taker is visible before the first assignment, in how the agency answers a dozen screening questions. The twelve below are grouped the way a procurement conversation actually runs: credentials first, then operations, then money. What a strong answer sounds like follows each group.
A note on method before the list. Ask the questions in order and let the agency answer without prompting; the goal is not to collect twelve correct answers but to hear which answers come fluently and which arrive after a pause. Process that actually exists gets described easily. Process invented on the call gets described carefully.
Credentials and fit
These four questions establish whether the agency understands credential tiers at all. They matter most, because everything downstream of a wrong credential is unfixable after the fact: a transcript taken through an unqualified interpreter cannot be re-credentialed retroactively.
- What credential will the interpreter hold for this specific proceeding, and in what jurisdiction? The answer should name a tier: certified, registered, CCHI or NBCMI for medical, RID for sign language.
- Will the written confirmation name the interpreter and state the credential? If confirmation arrives as "interpreter scheduled" with no name, verification is impossible.
- How do you match interpreters to subject matter? Listen for proceeding types: IMEs, EUOs, depositions, family court. A language-only answer is a red flag.
- Can I verify the credential myself? A confident agency points you to the public roster, as described in how to verify an interpreter's credential.
Operations and reliability
Credentials can be checked against public rosters; reliability cannot. These four questions are the closest available proxy, because each one asks the agency to describe what happens when something goes wrong rather than when everything goes right.
- What is your backup protocol when an interpreter cancels late? The credible answer describes a bench, not an apology.
- Do you staff two-interpreter teams for proceedings over an hour? The professional standard comes from NAJIT guidance, covered in interpreter teams for long proceedings.
- How do you screen conflicts when you serve both sides of a dispute? Listen for a conflict log and a substitution rule.
- Can you take a same-day or after-hours request, and does it carry a premium? Some agencies treat urgency as a surcharge product; others treat it as standard service.
Billing and the record
The final four questions protect the file. Interpreting charges flow into client bills, cost memoranda, and sometimes lien disputes, and the agency's paperwork either supports that chain or breaks it.
- Is the invoice itemized by interpreter, time, and proceeding? Unitemized invoices fail client audits and cost bills.
- Who pays cancellation fees, and on what notice window? Get the window in writing before the first booking, not after the first cancellation.
- For California litigation: is the interpreter certified or registered, so fees are recoverable as costs? Only those tiers qualify under CCP 1033.5(a)(3)(B).
- For translation: does every project get a second-linguist review and a certificate of accuracy where required? This is the QA line that separates translation companies from forwarding services.
Reading the answers
No single question is disqualifying on its own, but the pattern is telling. An agency that answers the credential questions precisely and the billing questions vaguely is a scheduling desk with a rate card. An agency that answers all twelve specifically, in writing, is a partner you can put on the record. The full evaluation framework is in how to choose an interpreting agency.
AMS publishes its answers up front: certified and registered interpreters confirmed by name, conflict logs, NAJIT-consistent teams, second-linguist translation review, and itemized invoicing. Request a quote and ask us all twelve.