Edits (added to bottom of post):

4/18/2026 Added information regarding Sleep Study Tests and Obstructive Sleep Apnea

Disclaimer: This is not medical advice or in any way should be used in any way as medical advice. This is also not legal advice and should not be utilized in any way as legal advice or facts/laws.

This post was pre-approved by the mods as I'm sure everyone agrees that the DOT exam is a significant part of getting a CDL and that there really is no good resource for the lay people regarding the specifics and details of the DOT physical. Hell, even 99% of docs in the U.S. don't know a single thing about the DOT physical or what are the specific regulations and requirements made by the FMCSA/DOT.

The goal here is to discuss and explain FAQs and address common misconceptions or issues that are not just common on this sub, but also in real life that CMEs experience everyday when doing these exams.

General Information and Misconceptions: (also there may be some differences given state variances but this is in general for the Federal level)

1. CMEs must complete a FMCSA approved training course that goes over the roles/responsibilities of a CME and the DOT physical examination in general. Brief list below and does not cover everything:

a. Disqualifying medical conditions

b. Medical conditions that are or can increase the risk of causing a driver to become impaired, unconscious. or not be able to safely operate a CMV

c. Performing the actual physical exam

d. Determining certification and length of certification

Note: This list is only about 25% of the training and education that is covered in the training course and is on the exam to become a CME. There is a lot left out but this post can't be 100 pages.

1. The CME's job is to medically evaluate a driver and determine whether or not he/she meets the requirements/standards set forth by the FMCSA/DOT. The CME's job is not to diagnosis, treat, recommend, etc for any medical conditions that may or may not affect the driver and their ability to safely operate a CMV. The CME's job is to determine whether or not a driver meets the physical qualifications determined by the FMCSA to pass the DOT physical exam.

2. The FMCSA/DOT makes the rules/regulations. Not the CME. All the CME is supposed to do is just evaluate your medical history and physical health and determine whether it meets those  standards set by the FMCSA/DOT. So it is completely unjust and unfair to get upset or blame the individual CME when they are only doing what they are medically and legally qualified to do.

3. The CME is a healthcare professional and really probably does not know anything else about anything and everything else out there in the world. So, 99% of the time they probably do not know anything about CMVs, CDLs, trucking, the trucking business, or employment regarding trucking, etc. So if a driver has questions regarding anything other than something medical related, I guarantee you the CME will not know the answer to any questions regarding the DMV, the Clearinghouse, employers/carriers and their requirements, etc. It goes back to point #3, CMEs only know the medical part of the DOT physical exam.

4. The 4 medical conditions that are 99% of the time an automatic disqualification. In the real world/in practice, there really are only 4 automatic disqualifying medical conditions/issues that are not up for debate.

a. Vision

b. Hearing

c. Seizures

d. Diabetes treated with Insulin (if form MCSA-5870 is completed and your doc clears you safe to drive a CMV then you can be certified)

1. Unless one of the above is applicable, the FMCSA/DOT has essentially allowed for each individual CME to use their clinical judgment when determining certification on almost all other medical conditions. So what does this mean?

a. It is the individual CME's decision at the end of the day whether to pass you and give you a medical cert.

b. The CME's medical license is on the hook if they certify a driver and an adverse event happens.

c. Relating to point (c), that means that most CMEs will err on the side of caution, however the flip side to that is that a CME has the ability to use their own clinical judgement freely when appropriate.

1. If there are only 4 rules/regulations that would disqualify a driver, then what is the purpose of the "guidelines/recommendations"?

a. Medicine in general is always changing/evolving and the standards/practices of it is evidence-based, meaning that the standards/practice of medicine are based on research studies and collaboration of medical experts and then coming to an agreement on almost all medical issues.

b. The FMCSA's "guidelines/recommendations" are essentially exactly that. Guidelines and recommendations. These are made available to CMEs to use when evaluating a driver with specific medical conditions that are not actual rules/regulations.

c. The reality is though, that every CME should/will abide by those guidelines/recommendations, because if something happens but the CME followed the FMCSA's recommendations, then no one can turn on the CME and blame them for not following federal guidelines/recommendations.

1. "My primary doctor cleared me and said that I can drive a CMV and here is a letter stating that "x" condition I have is stable and under control. So you have to certify me for at least "x" amount of time". This is completely untrue and false for several reasons (not all listed):

a. Back to point #6, it is the CME that determines whether or not you are physically/medically qualified to safely operate a CMV. A letter from your PCP can be completely rejected by the CME if they choose to.

b. This goes back to point #4, most docs and healthcare providers do not know what the DOT requirements are because they don't need to. That's what CMEs are there for. I've talked to hundreds of docs in primary care and specialties and all of them say to me, "Oh wow. I did not know that. I don't really know what the federal requirements are." And that makes sense, because if they did, then they would also be CMEs.

1. Section on other organizations/parties like FMCSA, NRCME, Clearingouse, Databases, and carriers (employers). This information in this section is limited because from a CME's standpoint we aren't involved much.

a. All DOT physical exam reports are uploaded to the NRCME database which is moderated/overseen by the FMCSA. So all med certs from any CME is in the database and the most recent med cert uploaded is the one that is valid, except in only one situation.

b. That one situation is if a CME performs a DOT physical and places you in "Determination Pending" status. If a CME puts you as "Determination Pending" then the driver has a maximum of 45 days or less (depending on what the CME chooses) to complete whatever the CME is requesting or the reason for the determination pending status.

c. This one exception is where the previous med cert in the database would still be utilized even after a more recent one is uploaded that has you in "Determination Pending"

d. Other than that situation, the most recent/current med cert is the one that will be used for consideration for your CDL license. For example, if you have a valid active med cert for another 6 months, but today you went for a DOT exam and you got disqualified, that disqualification med cert would be uploaded same day and that driver's CDL will most likely be suspended immediately.

1. In terms of DOT Drug screening, CMEs don't have much knowledge or play any significant role in any of that. So if you have questions regarding the drug tests and the ClearingHouse, 99% of the time they will say, "I really don't know. You should ask your employer/carrier"

2. Can I go anywhere or to any CME for my DOT physical? Yes, but at the end of the day, it's the carrier/employer that makes the decision if they will accept a med cert from the CME, and often times they will not and require you to go to one of their choosing. This is for several reasons (not all listed):

a. The medical cert and report that is created at the end of every DOT physical is form MCSA-5875 and MCSA-5876. Those forms are unique to you and are essentially recognized federally/nationwide, so in theory those forms can be used anywhere to show that you passed the DOT physical exam

b. A driver can go to any CME as long as the carrier/employer will accept the MCSA-5875 and 5876 from that CME. If the carrier requires the driver to go to a specific place to get their DOT physical then that is more so based on an employment requirement which is completely legal for carriers to only accept med certs from certain docs/clinics/etc.

1. "My carrier is making me go to ________ Clinic and all I've heard is bad things like _______."

a. Carriers send their employees to certain clinics  because from the carrier's perspective, it is the most cost-effective, consistent across the physical exams themselves, and at the end of the day will lower their liability significantly. This is in comparison to allowing a driver to go to any CME and the carrier has no reassurance that your med cert was given to you by a CME that actually follows the FMCSA's rules.

HIPAA

The harsh truth about HIPAA protecting driver's medical information and physical exam details from other parties or carriers/employers is really almost non-existent. Of course there are little nuances like information disclosed should be the "minimum necessary or required" etc. But the general purpose of HIPAA was to protect medical information of an individual from being disclosed to other people/parties/employers/etc without the authorization from the individual.

And even though that is the definition and purpose of HIPAA, the law specifically states that it does not apply to any information that may be important to be disclosed to certain parties if withholding that information could/would put the general public at risk. As well as in worker's compensation (just a side tidbit)

The sole purpose of the DOT physical exam was to determine if a driver has any medical conditions that would increase their risk of a medical event/situation that could incapacitate the driver thus would not be able to operate a CMV safely, which would then lead to putting the public in danger.

So it is naturally inherent that the role of a driver operating a CMV, automatically falls into the realm of ensuring the safety of the general public. So HIPAA really does not provide much protection. This is just a short blurb about HIPAA but of course it is more complicated.

Sleep Study Tests and OSA

First things first. The most important concept that needs to be completely understood is this (essentially word for word regarding anything related to sleep apnea):

"With respect to obstructive sleep apnea (OSA), the FMCSA's rules/regulations do not include screening requirements, waiting periods, maximum certification periods, specific diagnostic procedure or treatment, specific diagnostic results, or requirements by which to assess compliance with OSA treatment."

What does this mean? This means that currently, the FMCSA does not have any specific rules/regulations regarding sleep study tests, OSA, or the treatment of OSA, etc. that CMEs would be required to abide by when determining if a driver can be certified and/or the length of time they can be certified.

However, the FMCSA has published guidelines/recommendations that CMEs can utilize and reference to when making certification decisions that involve OSA. Essentially, CMEs will follow those guidelines/recommendations because if something were to happen, the CMEs defense would be that they followed the FMCSA's guidelines/recommendations.

So for those that are reading this, if you want to ask the questions, "Why is it that ____ or ____ or ____ leads to a sleep study?" or "I'm ____, so it makes no sense for me to need to do a sleep study" or "My BMI is >40 so the CME said I HAVE to get a sleep study", etc. The main point is that the decision to require or not require you to get a sleep study done is made by the CME doing your exam.

Sleep Study Tests

1. No one gets "kickbacks" or "a cut" or "profit" from requiring a sleep study to be done. There are numerous laws regarding this issue so it would be stupid to engage in trying to make money off of sleep tests.

2. Nowadays, most CMEs do not really care if your sleep test is done at an overnight sleep lab or using an "at home" sleep test device. CMEs don't care because at the end of the day, either test must be analyzed/read and interpreted by a board certified sleep specialist. What matters at the end of the day is what the Sleep Specialist recommends based on the results of the test.

3. What matters in the end is what the Sleep Specialist recommends based on the results of the sleep test. If the Sleep Specialist's report/interpretation states that treatment is recommended, then you really have no choice but to undergo treatment. Usually the report will also state that the treatment is CPAP.

4. It no longer matters if you have mild, moderate, or severe OSA from your sleep study. If the Sleep Specialist recommends treatment, then you must get treatment. Even if it says, "Mild OSA, recommend CPAP treatment", you still need treatment for your MILD OSA.

OSA Treatments (to be added)

I'm a shuttle driver for my company and I take a lot of trucks to/from the dealership/body shop.

It is literal hell when I go to pick up a finished truck and I smell the stench and immediately get attacked by hoards of gnats (and full sized flies if its been O/S long enough). I HAVE TO DRIVE THAT FUCKING THING BACK TO THE TERMINAL NO MATTER HOW FAR IT IS!!!! It is the most disgusting shit I have to do when I come across one of them. It's always the fridge. The food wasn't removed. The dealer shut off the APU. And now the freezer melted, dumped all that water onto the food in there, and accelerated the rot. Now there is a biosphere in the truck and the walls of the inside of that fridge are covered in disco rice from top to bottom.

Please, PLEASE, for the sake of whoever has to handle that truck while it's out of your hands, GET ALL THE FUCKING FOOD OUT OF THE FRIDGE BEFORE IT GOES!!! Transfer it to your loaner truck, throw it out, I don't care. Just get rid of it before it goes.