Commercial truck drivers and CDL holders in Maryland must meet specific federal medical standards to legally operate a commercial motor vehicle. This guide breaks down the DOT physical requirements for Maryland drivers, what conditions may affect certification, and how to get your exam done quickly and affordably in Silver Spring.
Federal DOT Physical Requirements: The Basics
The FMCSA sets the medical standards for commercial drivers nationwide. These standards apply to all CDL holders in Maryland, regardless of whether you drive locally or across state lines. To receive a DOT medical certificate, you must pass a physical exam conducted by an FMCSA-certified medical examiner.
Vision Requirements
- Distant visual acuity of at least 20/40 in each eye (with or without corrective lenses)
- Field of vision of at least 70 degrees in the horizontal meridian in each eye
- Ability to recognize colors on traffic signals and devices
Drivers who do not meet the standard vision requirement may apply for a Federal Vision Exemption Program waiver through FMCSA.
Hearing Requirements
- Must perceive a forced whispered voice from at least 5 feet in the better ear
- Hearing aids are permitted — bring yours to the exam
Blood Pressure Requirements
Blood pressure is one of the most common factors affecting DOT certification for Maryland drivers. Here is how the FMCSA classifies results:
- Stage 1 (140–159/90–99): 1-year certificate issued
- Stage 2 (160–179/100–109): 3-month conditional certificate; must be treated and re-examined
- Stage 3 (180+/110+): Disqualifying until blood pressure is controlled below 140/90
If your blood pressure was an issue in the past, bring documentation of treatment and recent readings to your appointment.
Diabetes Requirements
Maryland CDL drivers with diabetes must meet the following:
- Diet-controlled or oral medication-controlled diabetes: Generally certifiable
- Insulin-treated drivers: Must apply for an FMCSA Insulin-Treated Diabetes Mellitus (ITDM) exemption
Our examiners can help guide you through the exemption process if applicable.
Cardiovascular Requirements
You must not have a current clinical diagnosis of any condition likely to cause sudden loss of consciousness or incapacitation while driving. Conditions that may require additional documentation include:
- Previous heart attack or cardiac surgery
- Pacemaker or implantable defibrillator
- Arrhythmia or atrial fibrillation
- History of stroke or TIA
Bring documentation from your cardiologist or primary care physician if you have a known cardiac history.
Neurological Requirements
Drivers must not have a current diagnosis of epilepsy or any condition likely to cause a loss of consciousness or control. A driver with a seizure disorder is not qualified unless they have been seizure-free for a minimum period and have met other specific FMCSA criteria.
Sleep Apnea and CDL Certification in Maryland
Sleep apnea is increasingly screened during DOT physicals. Untreated obstructive sleep apnea (OSA) can result in a short-term certificate or temporary disqualification. However, drivers who are being actively treated with CPAP and have documentation of compliance are generally certifiable.
If you use a CPAP machine, bring your compliance report (typically downloaded from your CPAP device or provided by your sleep specialist).
Medications and DOT Certification
Many medications are permitted for CDL drivers, but some are disqualifying. Bring a complete list of all medications you take, including:
- Prescription medications
- Over-the-counter medications
- Supplements and herbal products
Medications in the following categories may affect certification and require careful review:
- Opioids or narcotic pain relievers
- Anti-seizure medications
- Antipsychotics
- Certain sleep aids and sedatives
- Methadone (disqualifying regardless of dose)
Our certified examiners will review your medications and advise you on any implications for your certification.
How Long Is a DOT Physical Certificate Valid in Maryland?
A standard DOT medical certificate is valid for 24 months. However, the examiner may issue a shorter certification period based on your health status:
- 3 months: For drivers with Stage 2 hypertension who need to demonstrate control
- 6 months: For drivers with conditions requiring close monitoring
- 12 months: For drivers managing certain chronic conditions
You must always carry a current, valid medical examiner’s certificate while operating a commercial motor vehicle.
Maryland CDL Medical Certificate: State vs. Federal Requirements
Maryland follows federal FMCSA standards for CDL medical certification. The Maryland Motor Vehicle Administration (MVA) requires commercial drivers to self-certify their operating category and, if required, submit their medical examiner’s certificate to the MVA. Our examiners submit results directly to the FMCSA National Registry, which fulfills the federal portion of this requirement.
Walk-In DOT Physicals in Silver Spring, MD — $105 Flat Fee
Alpha Therapy provides certified DOT physical exams at our Silver Spring office with no appointment needed. Our FMCSA-certified medical examiners serve CDL drivers throughout Montgomery County and the greater DMV area.
- Walk-in service every Friday, 10:00 AM – 6:00 PM
- Flat fee: $105
- Spanish-speaking staff available
- Results submitted directly to the FMCSA National Registry
- Located at 2443 Linden Lane, Silver Spring, MD 20910
Get Your DOT Physical in Silver Spring This Friday
No appointment needed. Walk in any Friday between 10:00 AM and 6:00 PM.
Alpha Therapy Silver Spring
2443 Linden Lane, Silver Spring, MD 20910
Phone: (301) 495-1000
Walk-in DOT Physicals — Fridays 10:00 AM–6:00 PM — $105