The Tool Desk
Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →An applicant tracking system (ATS) manages applications and recruiting workflow; résumé screening evaluates candidates against criteria. They are different things, not competing categories: an ATS can include automated screening, while screening can also be done by a person or a separate tool. The label “AI” alone does not tell you what a system evaluates or how much its output affects a hiring decision.
ATS and résumé screening do different jobs
An ATS is software for receiving and organizing applications and supporting hiring administration. Depending on the product and employer configuration, it may track candidates, route applications, and provide tools for evaluating them.
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Screening is the evaluation function: applying criteria to candidate information to filter, score, classify, recommend, or rank candidates. A person can screen applications manually; a standalone product can automate screening; or an ATS can have screening features enabled. One system may therefore combine routine workflow tools with automated evaluation.
In 2023 testimony to the U.S. Equal Employment Opportunity Commission (EEOC), ReNika Moore described ATS platforms as widely used and noted that some include algorithmic tools using knockout questions, keyword requirements, qualifications, or other characteristics to filter or rank applicants. That testimony describes practices and potential risks; it does not establish that every ATS screens applications automatically.
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What “AI résumé screening” can mean
The phrase can describe several different operations. A system might enforce a rule, such as requiring a particular qualification; assign a score; classify or tag an application; recommend candidates; rank them; or reject an application based on a configured rule. These outputs are not interchangeable, and the phrase “AI screening” does not identify which one is in use.
- Rules or knockout questions: An application may be filtered based on answers or specified requirements.
- Scores or classifications: Candidate information may be converted into a score, category, or tag.
- Recommendations or rankings: The tool may suggest candidates or order them for review.
New York City Rules § 5-300 gives scores, tags or categories, recommendations, and rankings as examples of simplified outputs. It also distinguishes those outputs from translating or transcribing existing text—for example, converting résumé text from a PDF. Parsing a document into usable text is not, by itself, proof that the system evaluates, scores, or ranks the applicant. Whether a particular tool falls within a legal definition depends on the full rule and the facts of its use.
How to compare a conventional ATS with an ATS that screens candidates
“Traditional ATS” is not a precise technical category, and product capabilities vary by vendor, configuration, and employer policy. A practical comparison focuses on what the deployed system actually does, rather than assuming that an ATS is either fully manual or AI-driven.
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| Question | Workflow-focused ATS | ATS with automated screening |
|---|---|---|
| What is its role? | Receives and organizes applications and supports recruiting administration. | Combines workflow functions with one or more candidate-evaluation functions. |
| What happens to résumé information? | It may be stored, organized, or converted into text; these actions alone do not establish screening. | It may be evaluated against specified criteria, depending on the feature and configuration. |
| What might the system output? | Application or workflow information; screening output is not inherent in the ATS label. | A filter, score, classification, recommendation, ranking, or other configured output. |
| Who makes the hiring decision? | Not determined by the system category; the employer’s process matters. | Not determined by the presence of automation; establish whether a person reviews, can override, or relies on the output. |
This comparison describes functions, not guaranteed features of every product. The actual criteria and data inputs, role of human review, and effect on advancement need to be established for the specific employer and configuration.
What applicants can—and cannot—tell from an application portal
An employer’s ATS brand or application portal does not reveal whether a person or an automated system reviewed a résumé. Nor is there evidence of one universal ATS score or ranking method that applicants can reliably optimize for. Criteria can vary, and the existence of document parsing does not show that an application was scored.
If you need to understand the process, useful questions include:
- Is an automated assessment used for this role?
- What qualifications or characteristics does it evaluate?
- Does a person review applications, and can that person reconsider or override the system’s output?
- How can I request an accommodation or an alternative process?
What employers should verify before relying on screening software
Employers should identify the feature actually enabled and how it is used—not rely on a vendor’s broad description of its product. Ask the vendor and internal hiring stakeholders:
- Does the tool only extract or organize information, or does it score, classify, rank, recommend, filter, or reject candidates?
- Which fields, data sources, criteria, and configuration settings drive the output?
- Does the output inform a decision, control advancement, or trigger an automatic rejection? Who reviews the underlying application, and how can a decision be overridden or corrected?
- What audit or validation evidence applies to the version and configuration actually deployed?
- What candidate notices, accommodation routes, data-retention practices, and jurisdiction-specific obligations apply?
These questions matter because employment-screening requirements depend on the tool’s use and location, not simply on whether a product is marketed as AI.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Accessibility and legal obligations depend on the selection practice
The EEOC’s A Technical Assistance Manual on the Employment Provisions (Title I) of the Americans with Disabilities Act, section 4.2, states: “Qualification standards or selection criteria that screen out or tend to screen out an individual with a disability on the basis of disability must be job-related and consistent with business necessity.” Reasonable accommodation may also need consideration. This principle concerns the selection criteria and process; it is not a blanket finding that all ATS software or all AI is unlawful.
New York City’s AEDT requirements are one local example
New York City Administrative Code § 20-871(a), effective January 1, 2023, makes it unlawful in the city for an employer or employment agency to use a covered automated employment decision tool (AEDT) to screen a candidate or employee for an employment decision unless statutory conditions are met. Those conditions include an independent bias audit conducted no more than one year before use and public availability, before use, of a summary of the most recent audit and the tool’s distribution date.
The law also requires notice to candidates who reside in New York City at least ten business days before use. The notice must say the tool will be used, identify the job qualifications and characteristics it assesses, and provide a way to request an accommodation or alternative process. Certain information about data sources and retention must be available on written request if it has not otherwise been disclosed.
New York City Rules § 5-301 specifically describes an AEDT used to screen résumés and schedule interviews, and says an audit is required even if the tool screens at an early stage and does not make the final decision. The audit calculations described in the rules cover sex, race/ethnicity, and intersectional categories. An audit does not establish that a system is unbiased, and these local requirements are not a complete account of rules elsewhere. Employers should check the current official requirements that apply to their location and use.
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