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Find answers to the most commonly asked questions below.
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Who determines what tests are required?
The SAP determines whether drug, alcohol, or both tests are required.
- Verified Date: April 21, 2026
Is RTD testing the same as follow-up testing?
No — RTD testing is completed before returning to duty. Follow-up testing occurs after.
- Verified Date: April 21, 2026
Do you include the cost of each test?
Test event costs may be billed separately depending on your pricing model. This service covers follow-up plan setup and management.
- Verified Date: April 21, 2026
What happens if a driver misses a follow-up test?
Missed tests may be treated as a refusal depending on circumstances. We provide guidance and documentation steps.
- Verified Date: April 21, 2026
Who schedules follow-up tests?
The employer is responsible. Dot Motus Compliance provides scheduling, tracking, and documentation support.
- Verified Date: April 21, 2026
Is follow-up testing the same as random testing?
No — follow-up testing is separate and must follow the SAP plan, even if the driver is also in the random pool.
- Verified Date: April 21, 2026
How many follow-up tests are required?
The SAP determines the plan. DOT requires at least 6 unannounced tests in the first 12 months
(commonly), and the plan may extend up to 60 months, depending on the SAP.
- Verified Date: April 21, 2026
Is this required for intrastate carriers?
Some states require USDOT Numbers for intrastate operations. We can advise based on your state.
- Verified Date: April 21, 2026
Does this include Operating Authority?
No — Operating Authority (MC) is a separate filing.
- Verified Date: April 21, 2026
How long does it take to get a USDOT Number?
In most cases, USDOT Numbers are issued immediately upon successful submission.
- Verified Date: April 21, 2026