P4HR Analysis • September 20, 2026

Who Defines “Satisfactory”? The Succession Problem Hidden in FAA Aeromedical Discretion

Federal aviation regulations repeatedly rely on evidence being “satisfactory to the Federal Air Surgeon.” That language gives medical judgment an important role—but it also raises a continuity question that is easy to miss: what objective standard remains constant when the person exercising that judgment changes?

This article grew from a question raised by P4HR co-founder Captain Mike Danford. His point was not simply that discretion can be unfair to an individual pilot. It was that an undefined discretionary standard can also create a safety and continuity problem for the system itself.

The issue appears in plain language in the medical standards. For a first-class medical certificate, 14 C.F.R. § 67.107(a)(4) states that substance dependence is disqualifying except where there is “established clinical evidence, satisfactory to the Federal Air Surgeon, of recovery,” including at least two years of sustained total abstinence. The same structure appears in the second- and third-class standards.

Special Issuance contains similar language. Under § 67.401, an applicant who does not meet the ordinary standards may receive an Authorization if the applicant shows, “to the satisfaction of the Federal Air Surgeon,” that the authorized duties can be performed without endangering public safety.

Those provisions establish a legal floor and a safety purpose. But they do not themselves identify a complete written formula for what evidence crosses the line from insufficient to satisfactory.

The Question Is Bigger Than the Current Federal Air Surgeon

As of September 2026, the FAA lists Dr. Susan Northrup as Federal Air Surgeon and Dr. Brett Wyrick as Deputy Federal Air Surgeon. P4HR has had substantive disagreements with current aeromedical policy, but the concern examined here is institutional rather than personal.

Every officeholder eventually leaves. A Federal Air Surgeon can retire, resign, be replaced, become unavailable, or be recused from a particular matter. The regulations remain in place when the personnel change.

If the operative standard exists primarily in the judgment of the officeholder rather than in a sufficiently specific written framework, two equally qualified officials could theoretically read the same record and place the threshold in different places.

One could demand substantially more monitoring, more testing, or more years of documented stability before being “satisfied.” Another could decide that favorable longitudinal evidence from the pilot’s clinicians is sufficient much sooner.

The point is not that either outcome would necessarily occur. The point is that the regulation, standing alone, does not tell the pilot, clinician, employer, reviewing tribunal, or public exactly where that boundary is.

A safety standard should not become materially stricter or materially looser merely because the name on the office door changes.

Safety Cuts Both Ways

Discussions about administrative discretion often focus only on the burden imposed on the person being regulated. Danford’s observation points to the opposite side as well.

If an unwritten threshold is unusually restrictive, a pilot may remain under extraordinary monitoring or Special Issuance long after favorable evidence has accumulated. That creates predictability, cost, and due-process concerns.

But an unwritten threshold could theoretically move in the other direction too. If a future decision-maker applied a materially lower threshold, the same vague phrase could be used to accept evidence that a predecessor would have considered inadequate.

That does not establish that the current FAA system is unsafe. It identifies a governance problem: when the decisive threshold is not adequately specified, consistency depends more heavily on the continuity of people and institutional custom.

For aviation, that is an unusual place to tolerate ambiguity. Pilots operate in a system built around published limitations, defined tolerances, checklists, qualification standards, recurrent requirements, and documented procedures precisely because safety should not depend on improvisation from one individual to the next.

FAA Guidance Adds Detail—but Preserves Case-by-Case Judgment

The FAA is not operating without guidance. Its current Aviation Medical Examiner materials describe detailed HIMS submission requirements, evaluations, monitoring, reports, testing, and renewal processes. The HIMS framework can require input from a HIMS AME, psychiatrist, treatment providers, peer pilots, chief pilots or management designees, and other sources.

The Step Down materials also say that progression is case-specific, that not all airmen progress at the same rate, and that progression is not guaranteed. Those provisions preserve individualized medical judgment.

Individualized judgment is not inherently a defect. Medicine cannot always be reduced to a single numerical checklist.

The unresolved question is narrower: which facts are genuinely discretionary, and which guardrails are fixed?

For example, if a pilot has years of negative testing, favorable psychiatric and psychological evaluations, favorable HIMS AME reports, favorable peer and employer reports, stable occupational performance, and no adverse clinical event, the publicly available regulations do not provide a precise rule stating how those pieces of evidence must be weighted when deciding whether the regulatory recovery exception has been satisfied.

Likewise, they do not identify a universally applicable written threshold explaining when one adverse report outweighs years of otherwise favorable evidence, or what type of adverse finding should reset a recovery determination.

The Clinicians Closest to the Pilot Already Generate the Evidence

Danford also raised a second issue: the relationship between the federal decision-maker and the clinicians who actually evaluate the pilot over time.

FAA policy already relies heavily on reports from HIMS AMEs, psychiatrists, psychologists and other professionals. Those clinicians may have repeated direct contact with the airman and may observe the person longitudinally rather than through a single administrative review.

A durable regulatory framework could specify more clearly how that evidence is used. For example, a written framework could identify:

which adverse findings are presumptively inconsistent with unrestricted certification;
which favorable findings constitute evidence of sustained recovery and clinical stability;
what weight is assigned to the current HIMS AME, psychiatrist, psychologist, treating professional, peer monitor and employer reports;
when a new evaluation or additional monitoring is medically justified;
what written explanation is required when the FAA departs from a unanimous favorable clinical record; and
what transition rules apply when responsibility moves from one authorized official to another.

Those are examples of possible guardrails, not a claim that every medical case can or should be automated.

The distinction matters. Codifying the boundaries of discretion is not the same as eliminating discretion. A rule can preserve medical judgment while still defining what evidence matters, what findings require additional scrutiny, and what reasons must be documented when a decision departs from the ordinary pathway.

The Regulations Already Recognize Both Judgment and Delegation

The structure of Part 67 makes the continuity question even broader than literal succession from one Federal Air Surgeon to the next.

Section 67.407 delegates authority to issue, renew and deny medical certificates to the Federal Air Surgeon, and also delegates certain functions to aviation medical examiners and authorized FAA representatives. Section 67.401(h) states that Special Issuance authority is also exercised by the Manager of the Aeromedical Certification Division and each Regional Flight Surgeon.

That means consistency is not merely a future concern. The regulatory system already anticipates that more than one authorized official may exercise aeromedical authority.

A clearly articulated evidentiary framework therefore serves two purposes at once: it gives airmen notice of the standard they are expected to meet, and it helps different authorized officials apply the same safety threshold to materially similar evidence.

“Transparent, Consistent, and Timely”

The FAA’s own stated objective is relevant here.

In the Federal Air Surgeon’s Medical Bulletin, Dr. Northrup described the Office of Aerospace Medicine’s goal as returning individuals to flying or controlling as soon as it is safe to do so, in a manner that is “transparent, consistent, and timely.”

Transparency and consistency become difficult to evaluate when the decisive standard is expressed at a high level but the practical threshold is not fully visible to the people trying to satisfy it.

A pilot can understand a requirement for two years of abstinence. A clinician can document a psychiatric opinion. A laboratory can report objective test results. A peer monitor can document observed behavior. An employer can document performance.

The harder question is what combination of those facts transforms a record from merely compliant into “satisfactory to the Federal Air Surgeon.”

The Real Continuity Test

The strongest regulatory standard is one that produces substantially the same result when the facts are substantially the same, regardless of who is occupying the office.

That does not mean two physicians must agree in every close case. Clinical judgment will always contain a degree of professional interpretation.

It does mean the system should make clear which parts of the decision are anchored by regulation, which are governed by published policy, which depend on individualized clinical judgment, and what evidence justifies moving outside the ordinary pathway.

The central question is therefore not whether the Federal Air Surgeon should have discretion.

It is whether the boundaries of that discretion are sufficiently defined that the standard survives a change in personnel without unexpectedly becoming harsher, looser, or simply different.

That is a fairness question. It is also a safety question. And because the regulation expressly places important decisions on whether evidence is “satisfactory” to a federal official, it is a question that deserves an answer in writing.

Primary Sources

Pilots for HIMS Reform publishes source-based analysis of FAA aeromedical policy and HIMS. This article concerns regulatory structure and continuity of standards; it is not individualized medical or legal advice.