Get your Clearinghouse query results through an API

What you can build on the Clearinghouse

• Get query results

  Build this

  Reads the results of the queries your account ran in a date range, one row per driver, with the query type and the result the Clearinghouse returned.

  Takes

  From date, to date, query type (optional)

  Returns

  Driver name, CDL number, CDL state, query type, date conducted, result

• Check queries available and prohibited drivers

  Build this

  Reads the quick stats on your dashboard: queries conducted, queries available for use and the number of your drivers in Prohibited status.

  Takes

  Nothing

  Returns

  Queries conducted, queries available, drivers prohibited

• Run a query for one driver

  Build this

  Selects Conduct a query and runs one query for a driver, using one query from your balance.

  Takes

  First name, last name, date of birth, CDL number, country, state, query type

  Returns

  Driver name, query type, date conducted, result or consent status

• Report a negative return-to-duty test

  Build this

  Reports a driver's negative return-to-duty test result with the test details the Clearinghouse asks for.

  Takes

  Driver name, date of birth, CDL number, CDL state, reason for test, test date, date reported to you

  Returns

  Driver name, CDL number, test date, result, report status

Automate the Clearinghouse with a workflow

A workflow runs your methods as one process, with nobody at the screen. A schedule or a call from your own system starts it, the steps run in order, and the result arrives in your inbox or in the systems you already use.

• Drivers with records found after limited queries

  Build this

  Starts

  Every weekday at 7:00

  Step 1

  Get the query results from the last day.

  Step 2

  Keep the drivers whose result is anything other than Not Prohibited.

  Step 3

  Email you each one with CDL number, query type and result, so a full query is run within 24 hours.

• Weekly check of queries available

  Build this

  Starts

  Every Monday at 8:00

  Step 1

  Check the dashboard for queries available and drivers prohibited.

  Step 2

  Stop when queries available is above the number you set.

  Step 3

  Otherwise email you the counts, so a query plan is bought before the next batch.

• Pre-employment query results to your hiring system

  Build this

  Starts

  When your hiring system calls the workflow's webhook with a candidate's CDL details

  Step 1

  Run a Pre-employment Query for the candidate with the CDL details your system sent.

  Step 2

  Get the query results for that driver.

  Step 3

  Post name, CDL number, consent status and result to your hiring system's webhook.

You can run a workflow by hand on every plan, Free included. Schedules and webhook triggers come with the paid plans, from $29 a month.

Once built, one call from your code

Once you have built a method, it is one POST to /v1/runs from your backend, or a tool an AI agent calls over MCP. This is what “Get query results” would look like.

curl https://api.fous.com/v1/runs \
  -H "Authorization: Bearer $FOUS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "method": "clearinghouse.fmcsa.dot.gov/get_query_results",
    "input": {
      "from_date": "2026-11-10",
      "to_date": "2026-11-11",
      "query_type": "Limited Query"
    }
  }'

{
  "status": "completed",
  "data": {
    "employer": "Acme Freight LLC",
    "results": [
      {
        "driver_name": "Jordan Ellis",
        "cdl_number": "D4410027",
        "cdl_state": "OH",
        "query_type": "Limited Query",
        "date_conducted": "2026-11-10",
        "result": "Not Prohibited"
      }
    ],
    "count": 1
  }
}

An example with invented data, not a ready-made endpoint. The method exists in your organization once you build it, and its name, inputs and fields follow your request.

The Clearinghouse’s own options

FMCSA describes the Clearinghouse as a website where employers, C/TPAs, MROs, SAPs and drivers each sign in to their own role's dashboard. Employers run queries one driver at a time or upload a bulk file built from the site's template, and buy query plans only on the site. FMCSA's employer guidance describes no API.

Read on November 12, 2026: FMCSA: Drug and Alcohol Clearinghouse presentation (PDF), CCJ: Clearinghouse annual query walk-through.

Signing in to the Clearinghouse

The Clearinghouse signs people in through Login.gov, and each person registers on their own. Login.gov's second step is the device's face or fingerprint check, an authentication app, a security key, a text message or phone call, backup codes or a government employee ID. With Fous you sign in with your own Login.gov account, and the login is sealed with AES-256 and never seen by code or AI agents.

Worth knowing

A full query needs the driver's consent

Full and pre-employment queries need the driver's electronic consent in the Clearinghouse. When a limited query finds records, the full query must be done within 24 hours or the driver comes off safety-sensitive work.

Only the employer buys query plans

C/TPAs cannot buy query plans. Each query, including each driver in a bulk file, comes out of the employer's balance.

Bulk results arrive later

A bulk upload is processed as a batch, not right away like a single query. An email tells you when the report can be viewed on the site.

Designate your C/TPA first

A C/TPA can query or report for you only after you designate it in the Clearinghouse. An owner-operator must designate one.

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