Sleep Apnea Screening Standards for CMV Drivers

FMCSA does not have a specific sleep apnea regulation, but Medical Examiners are required to assess sleep-related conditions per § 391.43. Industry standards from the Medical Review Board (MRB) guide examiner decisions.

When examiner considers sleep apnea

• BMI 33+ (Medical Review Board recommends screening)
• BMI 40+ (MRB recommends mandatory sleep study)
• Daytime sleepiness reported
• Self-reported snoring or witnessed apnea
• History of motor vehicle crash with sleepiness component
• Hypertension at certain levels
• Type 2 diabetes
• Other risk indicators

Sleep study (polysomnogram)

If indicated:

• Driver gets sleep study (overnight) at a clinic or in-home test
• Apnea-Hypopnea Index (AHI) calculated
• AHI < 5: no apnea
• AHI 5-14: mild apnea (driver may continue if compliance with treatment is good)
• AHI 15-29: moderate apnea (treatment required)
• AHI 30+: severe apnea (treatment required for continued certification)

Treatment options

1. CPAP (continuous positive airway pressure) — most common; driver wears mask at night
2. Oral appliance — for mild-moderate cases
3. Surgery — last resort
4. Weight loss — recommended in conjunction

Continued certification post-diagnosis

• Driver must demonstrate compliance with CPAP (typical: ≥4 hours/night for 70%+ of nights)
• Reduced AHI on follow-up (typically AHI < 5 with treatment)
• Continued examination every 12 months (vs. 24-month default) — common
• Self-reported daytime sleepiness reviewed at each exam

Driver pushback

Sleep apnea diagnosis is sensitive — drivers fear losing certification. Reality:

• Treated apnea = certification CONTINUES
• Untreated apnea = potential DOWNGRADING to shorter cert windows or non-cert

What the carrier sees

Compass medical tracking shows:

• Each driver's current cert expiration
• Drivers flagged by examiner for sleep apnea screening
• CPAP compliance documentation (when driver shares)
• Risk flag if compliance lapses

Common pitfall

A driver who tests positive for apnea but never starts treatment is at risk. The medical examiner has authority to NOT issue cert at next visit. Carrier must monitor.

CFR citations

• 49 CFR § 391.43
• FMCSA Medical Review Board Recommendations

How Compass surfaces this

This skill is searchable in Compass Ask and runs against the carrier's actual fleet data when invoked from the relevant tracker. Read-only; no actions taken without explicit user approval.

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