Who Must Use Electronic Verification and Who Chooses To
There is no general federal command that an employer use the electronic verification system. What exists instead is a contract clause, a patchwork of state licensing statutes, and a voluntary agreement that, once signed, is as binding as either of the other two.

The rule in short
The federal immigration statute requires document-based verification of every new hire but does not require electronic verification. Participation arises from a federal acquisition clause, from state laws enacted under the licensing exception to federal preemption, or from a voluntary memorandum of understanding. All three routes lead to the same operating rules, and an employer that joins voluntarily is held to them exactly as a mandated employer is.
Employers frequently assume that electronic verification is a national requirement. It is not. The immigration statute obliges every employer to examine documents and complete a form; it says nothing requiring an employer to query a federal database. Participation instead arrives by one of three routes, and the route matters because it determines who can enforce the obligation and what a lapse costs.
The statutory baseline, and what it leaves out
The verification duty in the immigration statute is document-based. An employer examines documents that establish identity and work authorization, records what it examined, and retains the record. The statute contemplates an electronic system in general terms and authorizes its development, but it does not convert use of that system into a condition of lawful hiring. An employer that never touches the system and completes its forms correctly is in full compliance with the statute.
That gap is what the other two routes fill. One is contractual, imposed through the acquisition regulation on federal contractors; the mechanics of that clause and its calendar are treated in the federal contractor verification clause. The other is state legislation, which occupies a narrow but real space that federal law leaves open.
The licensing exception and the room it leaves states
The statute preempts any state or local law imposing civil or criminal sanctions on those who employ unauthorized workers. The preemption clause carries a parenthetical exception for licensing and similar laws, and that parenthetical is the whole of the space in which state mandates operate. A state cannot fine an employer for hiring an unauthorized worker. It can condition a business license, or a permit, or eligibility for a state contract, on participation in the federal verification system.
The resulting statutes are uneven. Some reach all employers above a headcount threshold; some reach only public employers and their contractors; some reach private employers only when they seek a particular license or incentive. Because the enabling exception is about licensing, the enforcement mechanism is usually license suspension or ineligibility rather than a penalty, and the administering body is a state agency rather than an immigration authority.
Two features of these statutes recur and are worth checking before an employer concludes it is outside one. The headcount trigger is often measured across all locations of the same legal entity rather than per site, so a small local operation belonging to a larger company can be covered. And the obligation frequently attaches to the act of applying for or renewing a license rather than to hiring, which means the compliance date is a licensing date on an administrative calendar rather than anything visible in the hiring process.
| Route to participation | Source of the obligation | Who enforces it | Consequence of a lapse |
|---|---|---|---|
| Federal contract clause | Term written into the contract by the acquisition regulation | The contracting agency, with referral to a suspending and debarring official | Breach of contract, possible suspension or debarment |
| State licensing statute | State law enacted under the licensing exception to federal preemption | The state licensing or revenue authority | License conditions, suspension or ineligibility for state work |
| Voluntary participation | Memorandum of understanding signed by the employer | The administering federal agencies, through account review | Account suspension or termination, and referral where misuse appears |
| No participation | None; the statutory duty is document-based only | Immigration enforcement, through inspection of the forms | Paperwork and substantive violations under the statute |
Voluntary use binds the employer to the same rules
The most consequential misunderstanding concerns the employer that joins by choice. Voluntary participation is not a looser form of participation. The memorandum of understanding sets out obligations that apply identically to every participant: cases are created for new hires within a set period after the hire date, results are handled in a prescribed way, notices are posted, and the system is not used to screen applicants before a hire decision.
The rules on adverse action are the sharpest edge here, because they apply to an employer who never had to join in the first place. An employer that suspends or reassigns a worker while a case is unresolved has broken the same rule as a mandated employer would, and the conduct barred while a case is open is set out in what an employer may not do while a case is contested.
A participant that runs some new hires and not others, or that runs a case only when something about a document seems unfamiliar, has converted a compliance tool into a screening device applied unevenly. Uneven application is visible in the account record, and it supplies the pattern evidence that a discrimination investigation is built from. The rule is all new hires or none.
What participation does not displace
Participation supplements the form; it does not replace it. Every participating employer still completes and retains the paper record for every new hire, still faces inspection of those forms, and still bears the retention obligation described in retaining and destroying records. An employer that treats a confirmation result as evidence that its files are in order will be surprised by an inspection, because the errors that generate penalties are usually clerical.
Participation does carry one statutory benefit worth stating precisely. Where an employer verified a worker through the system in good faith, it gains a rebuttable presumption that it did not knowingly hire an unauthorized worker in that instance. The presumption is case-specific and rebuttable, and it does nothing for a form completed three days late. Employers with mixed obligations across states and contracts often ask an electronic verification counsel to reconcile the routes before building a single national procedure, because a rule written for the strictest jurisdiction is frequently the simplest to administer.
Reconciling overlapping mandates
A multistate contractor can be inside all three routes at once. The sensible response is to identify the strictest obligation on each axis and apply it everywhere: the earliest enrollment deadline, the broadest set of employees to be verified, and the most demanding record-keeping standard. That approach costs more than a jurisdiction-by-jurisdiction rule, but it removes the risk of a supervisor in one location applying another location's rule.
Where the routes genuinely conflict, the federal operating rules control the mechanics of the system itself, because they are the terms on which access is granted. A state statute cannot authorize an employer to run an existing employee whom the federal rules place off limits, and that boundary is the subject of the separate treatment of existing staff.
One further reconciliation problem arises where an employer acquires a business already inside a mandate it is not itself subject to. Whether the obligation travels with the acquired operation depends on the terms of the state statute and on the structure of the transaction, and the answer is not uniform. The safe course is to treat the acquired workforce as covered until the licensing authority confirms otherwise, since the alternative risk is a lapse in a jurisdiction nobody was watching.
Points to carry away
- The immigration statute preempts state civil and criminal sanctions against employers but expressly preserves state licensing and similar laws.
- That licensing exception is the constitutional footing on which state electronic verification mandates rest.
- Federal contractors are covered by an acquisition clause rather than by the immigration statute.
- An employer that joins voluntarily accepts the same operating rules as one that is mandated, including the rules on adverse action.
- Participation does not displace the document-based verification duty, which continues to apply to every employer.
Questions readers ask
Does joining the system reduce an employer's exposure on the paper forms?
Only at the margins. Electronic verification confirms data against government records; it does not confirm that the underlying form was completed correctly, signed on time, or retained. An inspection still examines the forms themselves, and the most common findings concern omissions and late completion rather than work authorization. Participation does create a rebuttable presumption that the employer did not knowingly hire an unauthorized worker in the case run through the system, which is a real benefit, but it is confined to that case and does not extend to the form.
Can a state require verification of workers who are not new hires?
State mandates vary in scope, and some reach beyond new hires to contractors or to public employment. The federal system's own rules, however, prohibit running most existing employees, so a state requirement that reached backward into a settled workforce would put an employer between two commands. In practice, state statutes are drafted against the federal system's operating rules rather than against them, and an employer facing an apparent conflict should treat the federal rules as the operating constraint and document the reasoning.
What obligations survive if an employer withdraws from the system?
The document-based verification duty survives, because it never depended on participation. Records created while the employer participated remain subject to the ordinary retention rules and remain producible on inspection. A federal contractor cannot withdraw while a covered contract is in force without breaching the clause. A voluntarily participating employer may generally withdraw on notice, but withdrawal partway through open cases is a poor idea, since an unresolved case leaves the employee's status ambiguous in the record.
Sources
- 8 U.S.C. § 1324a — Unlawful employment of aliensSets the verification duty for all employers and, at subsection (h)(2), preempts state sanctions other than licensing and similar laws.
- E-Verify — EmployersThe administering agency's statement of who participates and on what terms.
- E-Verify — What Is E-VerifyDescribes the system's relationship to the paper verification process it supplements.
- E-Verify — E-Verify and Form I-9Explains that electronic verification supplements rather than replaces the form.
- FAR 22.1802 — PolicyConfirms that the acquisition rule is not a substitute for other employment eligibility verification requirements.
- USCIS — I-9 CentralThe agency hub for the document-based verification obligation that applies regardless of participation.
Pinnacle Law Review is a publication, not a law firm. This article states general rules and cites its sources; it is not advice about any particular case, and the law differs by state and changes over time.
More in Workplace Immigration
What an Employer May Not Do While a Case Is Contested
While a verification mismatch is being contested, an employer may not terminate, suspend, delay training, withhold or lower pay, or take any other adverse action against the worker because of the mismatch. The standstill lasts until the case reaches a final result. Ordinary personnel decisions unconnected to the mismatch remain available, but the employer carries the burden of showing that the decision had an independent basis.
Technical Failures You Are Given Time to Correct
A technical or procedural failure is treated as compliance where the employer made a good faith attempt, unless the agency explained the basis for the failure, allowed at least ten business days to correct it, and the employer did not correct it voluntarily within that period. Uncorrected defects become substantive violations. The rule is unavailable to an employer engaged in a pattern or practice of unlawful employment.
Recruitment Advertising That Excludes Lawful Workers
The statute prohibits discrimination with respect to recruitment or referral for a fee, so a job advertisement that excludes lawful workers on the basis of citizenship status is within its reach without any hiring decision being made. Exceptions exist where the restriction is required by law, regulation, executive order or a government contract, or is determined essential to doing business with a government body. A commercial preference is not among them.


