ATSA vs AT-SAT: What Changed in FAA Controller Testing

The AT-SAT (Air Traffic Selection and Training) was the FAA's pre-employment aptitude test for air traffic controller applicants until November 2016, when the agency replaced it with the Air Traffic Skills Assessment (ATSA). They are different tests built from different material, so study guides, forum posts and "AT-SAT practice tests" written for the old battery describe a test you won't sit.

The two names are easy to confuse — federal law even abbreviates the current test as "AT-SA" — and many older web pages still use them interchangeably. This guide sets out the history from primary sources, what actually changed, and what it means for how you prepare.

A short timeline

Date	What happened
2001	FAA research reports (Ramos, Heil and Manning, cited in a 2014 FAA report) document the AT-SAT, a computerized aptitude battery built from a formal job analysis of entry-level controller requirements.
February 2014	The FAA overhauls controller hiring: one nationwide announcement, a reduced role for Collegiate Training Initiative (CTI) schools, no Centralized Selection Panel, and a new Biographical Assessment used to screen applicants before the AT-SAT.
March 2015	The FAA revises the Biographical Assessment for its second all-sources announcement.
July 15, 2016	The FAA Extension, Safety, and Security Act of 2016 (Pub. L. 114-190, section 2106) restructures hiring into preferential tiers and applicant pools and restricts use of the Biographical Assessment.
November 2016	The ATSA replaces the AT-SAT.
2018	The FAA introduces three hiring bands based on ATSA scores.
December 20, 2019	The FY2020 National Defense Authorization Act (Pub. L. 116-92) changes how the two applicant pools are prioritized and directs the DOT Inspector General to review the ATSA's development.
January 11, 2023	The DOT OIG publishes that review (report AV2023011).
May 16, 2024	The FAA Reauthorization Act of 2024 (Pub. L. 118-63, section 417) directs the FAA to review and, if necessary, revise the AT-SA, followed by a further Inspector General report.

What the AT-SAT was

An FAA Civil Aerospace Medical Institute report from 2014 describes the AT-SAT as a computerized aptitude test of "cognitive abilities, skills, and other personal characteristics" identified through a formal job analysis, with seven cognitively loaded subtests. The DOT OIG's 2017 audit describes it as eight subtests "from traditional multiple-choice question to dynamic scenarios and simulations" — the eighth being an Experience Questionnaire that asked about past experiences.

According to the same FAA report, applicants with an AT-SAT composite score below 70 weren't qualified for consideration, and the FAA used category ranking to select among those who passed.

The 2014 detour: the Biographical Assessment

Before the ATSA arrived, the FAA's February 2014 hiring changes added a Biographical Assessment. The OIG's 2017 report says it replaced the AT-SAT's Experience Questionnaire and was meant to predict controller performance by asking candidates to recall typical behaviors and experiences, often from earlier in life. General-experience applicants had to pass it to become eligible to take the AT-SAT at all.

The change was controversial. The OIG reported that CTI program administrators felt the rollout was abrupt, and that students who had already passed the AT-SAT had to reapply under the new process. Congress responded in 2016: current law (49 U.S.C. 44506) says the FAA "shall not use any biographical assessment" when hiring under its main preferential-consideration provisions, and it required the FAA to let certain applicants disqualified by the Biographical Assessment in the 2014 announcement reapply.

If you read about a "biographical questionnaire" that screened people out before testing, that describes the 2014–2016 process, not today's ATSA. Candidates do describe a work-style questionnaire inside the current ATSA — a different instrument with a different purpose, covered in our work style guide.

Why the FAA replaced the AT-SAT

The DOT OIG's 2023 report summarizes the FAA's reasons. A 2012 FAA review found that the AT-SAT:

• did not sufficiently test applicants' skills and abilities related to current job requirements;
• was not designed to take advantage of improved technology and security features; and
• had been compromised — the FAA found that AT-SAT questions and answers had been leaked to the public, undermining its ability to test applicants objectively.

That last point matters for anyone browsing old prep material. Content that circulated for the AT-SAT was one of the reasons the test was retired.

How the ATSA was built

The OIG report describes a multi-year process:

• The FAA hired the consulting firm APTMetrics in 2013 to run a job analysis identifying the critical skills, abilities and other characteristics controllers need.
• The FAA contracted with two vendors, Airways New Zealand and SHL/CEB, whose commercially available assessment software served as the basis for the ATSA.
• Fifteen vendor assessments were considered. More than 1,380 certified professional controllers, drawn from a random sample of more than 4,600, took them for validation and were rated by supervisors; an estimated 620 Academy students also took the validation exam.
• The FAA, APTMetrics, the controllers' union NATCA and subject-matter experts chose 7 of the 15 assessments — the ones that best covered the required skills within the FAA's preferred time.

The OIG concluded that these steps provide "reasonable assurance" the test addresses the skills controllers need, but found the FAA lacked a plan to evaluate the test's effectiveness over time. The assessments remain proprietary to the vendors.

What's different for you as a candidate

	AT-SAT (to 2016)	ATSA (2016 onward)
Content	Seven cognitive subtests plus an Experience Questionnaire (later displaced by the separate Biographical Assessment)	Seven assessments chosen from two vendors' commercial software
Pass threshold	Composite below 70 not qualified	70 percent to pass, per the OIG
How results were used	Category ranking among applicants who passed	Hiring bands; candidates see a category only, with no overall score (Pearson VUE)
Bands	No banding described in the sources we reviewed	Since 2018: best-qualified (90+), well-qualified (85–89), qualified (70–84), per the OIG; the labels in current FAA materials have varied
Where you test	Not covered in the sources we reviewed	In person at a Pearson VUE test center, after an invitation

The biggest practical change is the banding. The OIG reported that since 2018 the FAA has only hired candidates in the top two bands, so passing is not the same as being competitive. The 2026 USAJOBS announcement required a "Best" or "Well-Qualified" result to move forward. Our score bands guide covers the label changes in detail.

Why old AT-SAT material can mislead

• Different tasks. Practice built around AT-SAT subtests trains a battery that no longer exists. Section names and formats reported for the ATSA — such as Number Differences or the ATC collision-avoidance simulation — come from the vendors' software, not the old test.
• Leaked content. The FAA itself cited leaked AT-SAT questions and answers as a problem. Material of uncertain origin is a poor guide and not something you should want.
• Outdated process advice. Posts about the Biographical Assessment, "passing is enough," or pre-2016 CTI hiring describe rules that Congress and the FAA have since changed. See Pool 1 vs Pool 2 for how the pools work today.
• Name confusion. Some sellers still label ATSA material "AT-SAT." Check what a product actually covers before relying on it.

Even current ATSA practice — including ours — is familiarization, not a copy of the real test: the FAA says no preparation is necessary and doesn't endorse any practice test. If you want to see the reported formats before test day, start with our preparation plan or see our plans.

Frequently asked questions

Is the AT-SAT still used?

No. According to the DOT OIG and the FAA's own response to that audit, the FAA replaced the AT-SAT with the ATSA in 2016. Entry-level trainee applicants now take the ATSA.

Is the ATSA the same as the AT-SA?

Yes. "AT-SA" is the abbreviation used in the FAA Reauthorization Act of 2024 for the Air Traffic Skills Assessment. FAA hiring materials and Pearson VUE generally write "ATSA."

Did the 2024 law change the ATSA?

The 2024 Act required the FAA to review the AT-SA's questions, assumptions, methods and scoring and revise it if necessary, with an Inspector General report to follow. We haven't found a public FAA summary of what, if anything, changed as a result, so treat any claim of a "new ATSA" with caution unless it cites a source.

Is the Biographical Assessment part of the ATSA?

No. The Biographical Assessment was a separate screening step introduced in 2014, and federal law now bars its use under the FAA's main hiring provisions. The ATSA's work-style section, as candidates describe it, is part of the skills assessment itself.