Federal Law Requires Ethics Oversight for Human Testing. Why Doesn’t Aviation Medicine Have the Same Transparency?
Across the United States government, programs that conduct testing or research involving human participants are required to follow strict ethical safeguards.
These protections are established under the Federal Policy for the Protection of Human Subjects, commonly known as the Common Rule, codified in 45 C.F.R. Part 46. The regulation applies broadly across federal agencies and is designed to ensure that any research involving human subjects is conducted ethically and transparently.
Under 45 C.F.R. § 46.101(a), the federal policy applies to “all research involving human subjects conducted, supported, or otherwise subject to regulation by any federal department or agency.” The rule requires that such research be reviewed by an Institutional Review Board (IRB) before it proceeds.
Under 45 C.F.R. § 46.109, research involving human participants must undergo IRB review and approval in order to ensure ethical safeguards, appropriate protections, and accountability.
The purpose of an IRB is straightforward: when programs collect biological samples, medical data, or other information from human participants in order to evaluate protocols or test methods, independent oversight helps ensure ethical protections and scientific accountability.
These requirements are a standard part of federal governance.
Questions for Aviation Medicine
But this federal framework raises an important question when examining aviation medicine.
The Federal Aviation Administration’s Office of Aerospace Medicine administers the medical certification system that governs the health standards for airline pilots and other aviation professionals. Within this system, programs such as the HIMS pathway can involve extensive monitoring requirements that last for many years.
Pilots participating in these programs may undergo repeated laboratory testing, psychiatric evaluations, treatment requirements, and structured monitoring protocols that can affect their professional lives and careers for extended periods of time. These systems also generate large amounts of biological and medical data.
Over time, various diagnostic tools, biomarkers, and evaluation methods have been incorporated into the aeromedical system as aviation medicine continues to evolve.
Yet the FAA’s aeromedical certification process does not appear to operate under a visible independent ethics review structure comparable to the IRB oversight required elsewhere in the federal government when human-subject research is conducted.
Regulation vs. Research
To be clear, the FAA would likely argue that its aeromedical certification system is not research. From the agency’s perspective, these programs fall under its statutory authority to determine whether pilots meet the medical standards required for aviation safety.
That distinction is important.
Routine workplace drug testing or medical certification programs are typically considered regulatory or administrative activities rather than research. As such, they generally do not require IRB oversight.
However, federal policy requiring human-subject protections exists precisely because programs that collect biological data from individuals and apply evolving medical protocols can raise questions about transparency, validation, and oversight.
The FAA’s flagship recovery pathway—HIMS, originally short for Human Intervention Motivation Study—reflects the program’s origins as an effort to evaluate a structured recovery model for pilots. While the program today functions as an operational monitoring system rather than a formal research study, its historical roots underscore the importance of maintaining transparency as protocols evolve.
Transparency Strengthens Safety
Aviation professionals strongly support rigorous medical standards that protect the flying public. Safety must always remain the highest priority in aviation.
But systems that rely on long-term monitoring, repeated biological testing, and evolving medical evaluation protocols should also be transparent about the scientific basis for those protocols and the processes used to review them.
Federal law already establishes clear ethical oversight requirements when research involving human subjects is conducted. When government programs collect significant medical data from individuals over long periods of time, it is reasonable to ask how those programs ensure that their underlying methods remain scientifically grounded and accountable.
Pilots for HIMS Reform believes that aviation medicine can maintain the highest level of safety while also embracing transparency and evidence-based oversight.
Because when careers and livelihoods depend on medical determinations, public confidence in the system responsible for making those decisions is essential.