Sleep apnea is the most feared topic in this exam and the least governed: the federal government proposed a rule, walked away from it in 2017, and left the question to examiner judgment. Here is the whole story, with dates.
The checker reads your verdict. The Kit gets you through the exam: documentation packets for your condition, the two 45-day form clocks run as a calendar, the official medication form packet, waiting-period calendars, failure recovery, and the examiner phone script.
Two examiners can honestly treat the same driver differently — one screens by the committee criteria, one does not. What you can compute is your referral risk: whether an examiner using FMCSA's own committees' published criteria would send you for a sleep study. The checker on this site computes exactly that, and labels it in its full name — a referral-risk assessment from published-but-never-adopted criteria — because calling it a verdict would be lying to you in precisely the way this department exists to refuse.
A referral is not a failure; it is a detour with a map. Home sleep tests (drivers pay roughly $189 for them) put the timing in your hands. If apnea is diagnosed, treatment adherence becomes your documentation: examiners commonly look for about 4 hours of CPAP use a night on 70% of nights, from the machine's own download — that figure is advisory practice, not a federal number, and the CPAP matrix page says so in those words.
Federal source: 49 CFR 391.41(b)(5); ANPRM withdrawal, August 8, 2017; MRB/MCSAC recommendations, October 2016 (never adopted) · Rules checked October 2026