A software company extends an offer in February to a candidate finishing a master's degree in the United States. The candidate is on F-1 student status with optional practical training. Start date: June 1. Everyone is delighted.

Then the immigration lawyer explains the calendar. The H-1B registration period ran in March. Even if the candidate had been registered and selected, an H-1B petition filed under the cap cannot have a start date before October 1. The candidate's practical training expires in August. There is a cap-gap extension that may or may not apply depending on the timing of selection and filing. And the selection itself is a lottery in which roughly one registration in four is chosen, in years when demand runs as it recently has.

None of this is discretionary. The company can pay more, move faster, or escalate to anyone it likes, and the statutory numbers do not change.

Business immigration rewards planning eighteen months ahead and punishes everything else. This article is a map of the queues.

The short answer

Two systems, running in parallel.

  • Nonimmigrant (temporary) status lets someone work for a defined period in a defined role: H-1B, L-1, O-1, TN, E-2, E-3, and others. Most are employer-specific.
  • Immigrant (permanent) status — the green card — usually requires a labor certification, an immigrant petition, and an available visa number, in that order.

The three questions to ask in the first conversation:

  1. What is the person's current status, and when does it expire?
  2. Which nonimmigrant category fits the role, and is it subject to a cap or a queue?
  3. What is the person's country of birth? For the green card, that determines the wait — which for some countries is measured in decades.

The most common employer mistake is treating immigration as paperwork attached to an offer letter rather than a constraint on the hiring timeline.

H-1B: specialty occupation

The H-1B is the default professional work category, and the hardest to obtain.

Requirements. The position must be a specialty occupation — requiring theoretical and practical application of a body of highly specialized knowledge and, normally, a bachelor's degree or higher in a specific specialty (or its equivalent) as a minimum for entry. The worker must hold that degree or an equivalent combination of education and experience.

The "specific specialty" language does real work: a role open to any bachelor's degree generally does not qualify, and adjudicators scrutinize whether the claimed degree field bears a direct relationship to the duties.

The cap and the registration lottery. Congress caps new H-1B numbers at 65,000 per fiscal year, plus 20,000 for holders of US master's degrees or higher. Because demand exceeds supply, USCIS runs an electronic registration process in March: employers register beneficiaries for a fee, USCIS selects randomly, and only selected registrations may file a petition. Employment cannot begin before October 1 of the relevant fiscal year.

USCIS has moved to a beneficiary-centric selection process, so each individual is entered once regardless of how many employers register them — a change aimed at the multiple-registration gaming that had distorted earlier lotteries.

Cap-exempt employers. Institutions of higher education, related or affiliated nonprofit entities, nonprofit research organizations, and governmental research organizations are exempt from the cap and may file at any time, 8 U.S.C. § 1184(g)(5). A worker employed at a cap-exempt institution can also work concurrently for a cap-subject employer without a cap number, which is a genuinely useful and underused structure.

Duration. Three years, extendable to a total of six. Beyond six years, extensions are available under AC21 § 106(a) if a labor certification or I-140 was filed at least 365 days earlier, and under § 104(c) in three-year increments where an approved I-140 exists but a visa number is unavailable due to per-country limits.

Portability, 8 U.S.C. § 1184(n). A worker in valid H-1B status may begin work for a new employer upon the filing of a non-frivolous petition, without waiting for approval. This is what makes job changes possible, and it is why the new employer's filing receipt matters so much.

Amendments. A material change in the terms of employment — including a move to a new worksite outside the area of intended employment — requires an amended petition before the change occurs. The rule surprises employers with distributed workforces constantly.

Dependents. H-4 spouses may obtain work authorization only where the H-1B holder has reached specified milestones toward permanent residence.

The labor condition application and the public access file

Before filing an H-1B petition, the employer must obtain a certified labor condition application (LCA) from the Department of Labor, making four attestations, 20 C.F.R. part 655 subparts H and I:

  1. Pay the higher of the actual wage (paid to similarly employed workers at the company) or the prevailing wage for the occupation and area.
  2. Employment will not adversely affect the working conditions of similarly employed workers.
  3. There is no strike or lockout in the occupation at the place of employment.
  4. Notice has been provided — posted at the worksite or provided to the bargaining representative.

Obligations that follow, and that generate most enforcement findings:

  • Benching is prohibited. The employer must pay the required wage even during nonproductive time due to lack of work or lack of a license. Placing a worker on unpaid leave between projects is a wage violation.
  • Return transportation. If the employer terminates before the end of the authorized period, it must pay the reasonable cost of return transportation abroad.
  • No unlawful deductions, including passing the ACWIA training fee or attorney's fees for the employer's petition to the worker, where doing so would reduce pay below the required wage.
  • The public access file must be created within one working day of LCA filing and maintained for the required retention period. It contains the certified LCA, wage rate documentation, the actual wage memorandum explaining the pay system, the prevailing wage source documentation, proof of notice, and a summary of benefits. It must be available to any member of the public on request.

Department of Labor investigations frequently begin with a complaint and end with a public access file that does not exist. Building it is a thirty-minute task per filing; not building it is a per-violation penalty plus back wages.

L-1: intracompany transferees

The L-1 moves an existing employee from a foreign entity to a related US entity. There is no annual cap and no lottery, which makes it the fastest route for companies that qualify.

Requirements. The worker must have been employed abroad by a qualifying related entity — parent, subsidiary, affiliate, or branch — for one continuous year within the preceding three years, in a managerial, executive, or specialized knowledge capacity, and must be coming to serve in such a capacity.

  • L-1A — managers and executives. Up to seven years.
  • L-1B — specialized knowledge. Up to five years.

Specialized knowledge is the contested element: knowledge of the company's product, service, research, equipment, techniques, or management that is special or advanced relative to others in the industry and within the company. Petitions that describe generally available technical skills are routinely denied.

New office L-1s — where the US entity has been operating less than a year — are approved for one year initially, and the extension requires evidence that the office is doing real business with real staffing. Many new-office petitions approve easily and fail at extension.

Blanket L. Larger qualifying organizations can obtain a blanket approval permitting individual employees to apply directly at a consulate, cutting months from the process.

Strategic advantage. The L-1A manager or executive maps directly onto the EB-1C multinational manager green card category, which requires no PERM labor certification. For an eligible person, that is the fastest permanent residence path available.

O-1: extraordinary ability

The O-1 is for individuals with extraordinary ability in the sciences, education, business, or athletics (O-1A), or extraordinary achievement in the arts or in motion picture and television (O-1B).

No cap, no lottery, no degree requirement, and no maximum period — initial approval up to three years, with one-year extensions indefinitely.

The standard for O-1A is sustained national or international acclaim, established by a major internationally recognized award or by satisfying at least three of eight regulatory criteria, 8 C.F.R. § 214.2(o)(3)(iii): nationally or internationally recognized prizes; membership in associations requiring outstanding achievement; published material about the person; judging the work of others; original contributions of major significance; authorship of scholarly articles; employment in a critical or essential capacity for organizations with a distinguished reputation; and high remuneration.

USCIS policy guidance has expanded the examples relevant to entrepreneurs and to STEM fields, and the category is increasingly used by founders and senior technical staff who cannot wait for an H-1B lottery. It requires a consultation from a peer group or labor organization where one exists, and an itinerary and defined US employer or agent.

Practical note. O-1 petitions are evidence-heavy. Building the record — recommendation letters from independent experts, documentation of judging, press coverage, citation analysis — takes months of the beneficiary's own effort, and should start long before the filing.

The faster alternatives, if the person qualifies

  • TN (USMCA) — Canadian and Mexican citizens in listed professions. Canadians may apply at a port of entry; approval can take a day. Three-year increments, renewable, but requires nonimmigrant intent, which complicates a green card filing.
  • E-3 — Australian citizens, in a specialty occupation. Functions like an H-1B with its own 10,500 annual allocation that has never been exhausted, renewable indefinitely, and E-3 spouses may work.
  • E-2 treaty investor — nationals of treaty countries investing a substantial amount in a US enterprise they direct and develop. Renewable indefinitely; the enterprise must be more than marginal. Essential employees of the same nationality may also qualify.
  • E-1 treaty trader — substantial trade principally between the US and the treaty country.
  • H-1B1 — Chile and Singapore, with a separate allocation.
  • J-1 — exchange visitor categories, some subject to a two-year home residency requirement that must be satisfied or waived before H or L status or permanent residence.
  • F-1 optional practical training — 12 months post-completion, plus a 24-month STEM extension for qualifying degrees with an E-Verify employer and a formal training plan. This is the runway that makes multiple H-1B lottery attempts possible.
  • Cap-exempt concurrent employment, described above.

The employment-based green card: step one, PERM

For most professionals, permanent residence begins with PERM labor certification — a Department of Labor process establishing that there are no able, willing, qualified, and available US workers for the position, and that hiring the foreign national will not adversely affect wages and working conditions, 20 C.F.R. part 656.

The sequence:

  1. Prevailing wage determination. The employer files a request with the Department of Labor's National Prevailing Wage Center describing the job and its minimum requirements. Processing has run several months. The determination is valid for a stated period and sets the wage floor.
  2. Recruitment. For professional positions: two Sunday newspaper advertisements in the area of intended employment, a 30-day state workforce agency job order, a notice of filing posted at the worksite for 10 consecutive business days, and three additional recruitment steps from the regulatory list (job fairs, the employer's website, job search websites, on-campus recruiting, trade or professional organizations, private employment firms, an employee referral program with incentives, campus placement offices, local or ethnic newspapers, or radio and television advertisements).
  3. The quiet period. Recruitment must conclude at least 30 days before filing, and no step may be more than 180 days old at filing.
  4. Review of applicants. The employer must review every US applicant and may reject only for lawful, job-related reasons. The recruitment report documents each rejection.
  5. File Form ETA-9089. No supporting documents are filed; the employer must retain the audit file for five years. Audits are common, and a random audit adds many months.
  6. Priority date. The date PERM is filed becomes the priority date — the person's place in the queue, which is the single most valuable thing the process produces.

Requirements that trip employers up. The job requirements must reflect the actual minimum requirements for the position, not the incumbent's qualifications. Requirements exceeding the normal for the occupation must be justified by business necessity. A foreign language requirement almost always draws an audit. And if the beneficiary gained qualifying experience with the sponsoring employer in the same or a substantially comparable position, that experience generally cannot be counted.

Step two: the immigrant petition and the preference categories

With PERM certified (or in categories that skip it), the employer files Form I-140.

  • EB-1A — extraordinary ability. Self-petitionable, no employer required, no PERM. Standard comparable to the O-1 but adjudicated more strictly.
  • EB-1B — outstanding professor or researcher. Requires international recognition, three years of experience, and a permanent research position. No PERM.
  • EB-1C — multinational manager or executive. The counterpart to L-1A: one year of qualifying employment abroad in the preceding three, in a managerial or executive capacity, with a qualifying relationship between entities. No PERM.
  • EB-2 — advanced degree or exceptional ability. A master's degree or a bachelor's plus five years of progressive experience. PERM required unless a national interest waiver applies.
  • EB-2 national interest waiver (NIW). Self-petitionable, no employer, no PERM. Under Matter of Dhanasar, 26 I. & N. Dec. 884 (AAO 2016), the petitioner must show the endeavor has substantial merit and national importance, that they are well positioned to advance it, and that on balance it would be beneficial to the United States to waive the job offer and labor certification requirements. USCIS policy guidance has elaborated on entrepreneurs and STEM fields, and the category has grown substantially.
  • EB-3 — professionals, skilled workers, and other workers. PERM required. Lower threshold than EB-2, sometimes with a shorter queue depending on country and month.
  • EB-4 — special immigrants, including certain religious workers.
  • EB-5 — immigrant investor. Investment of the statutory amount in a new commercial enterprise creating ten full-time jobs, with a lower threshold in a targeted employment area. The EB-5 Reform and Integrity Act of 2022 restructured the regional center program, added set-asides for rural and high-unemployment areas, and permits concurrent filing of the I-485 for applicants already in the United States when a visa is available.

Premium processing is available for many I-140 classifications, producing a decision within the applicable premium timeframe. It does not accelerate the visa queue.

Priority dates, the visa bulletin, and the country queues

The number of employment-based immigrant visas is capped annually, and no country may receive more than 7 percent of the total. Because demand from India and China vastly exceeds 7 percent, applicants born in those countries face queues that others do not.

The Visa Bulletin, published monthly by the Department of State, contains two charts:

  • Final Action Dates — when a green card may actually be approved.
  • Dates for Filing — when the I-485 application may be submitted, if USCIS designates that chart for the month.

An applicant may file the I-485 when their priority date is current under the applicable chart. Filing matters even before approval is possible, because it unlocks employment authorization and advance parole for the applicant and dependents.

Cross-chargeability. A spouse born in a country with a shorter queue can supply the chargeability for both, which is one of the most consequential and least known facts in the system.

AC21 portability, 8 U.S.C. § 1154(j). Once the I-485 has been pending for 180 days and the I-140 is approved, the applicant may change employers into a same or similar occupational classification without losing the petition. This is what makes a decade-long queue survivable.

Aging out. Children turning 21 during the wait may lose derivative status; the Child Status Protection Act provides a calculation that subtracts petition processing time, and its application to the visa bulletin charts has been the subject of policy change. Families in long queues should have this analyzed early rather than discovered late.

Step three: adjustment of status or consular processing

Adjustment of status (Form I-485) is filed in the United States. Advantages: the applicant may remain and work, may obtain an employment authorization document and advance parole for travel, and dependents are handled together. Disadvantages: processing times vary widely by office, and travel without advance parole can abandon the application.

Consular processing occurs at a US consulate abroad. Often faster where the National Visa Center and the post are moving well, but requires departure and carries the risk that a ground of inadmissibility surfaces at the interview with no US-side appeal.

Common inadmissibility issues to identify early: unlawful presence and the three- and ten-year bars; misrepresentation; criminal history, including offenses that seem minor; public charge considerations; and prior removal orders. These should be assessed at the beginning of the process, not after an I-140 approval.

A worked timeline

Nadia, born in Egypt, completes a US master's in computer science in May of Year 1.

  • Year 1, May. Begins 12-month OPT.
  • Year 1, June. Joins Harrowgate Systems. Because her degree is STEM-designated and the employer uses E-Verify, she files for the 24-month STEM extension, giving her runway through Year 3.
  • Year 2, March. Harrowgate registers her in the H-1B lottery. Not selected.
  • Year 3, March. Registered again. Selected. Petition filed in April with an October 1 start. Because her OPT would expire in August, the cap-gap provision extends her work authorization to the H-1B start date.
  • Year 3, October. H-1B status begins. Valid three years.
  • Year 4, February. Harrowgate begins PERM. Prevailing wage determination returns in month 5.
  • Year 4, September. Recruitment runs; two Sunday ads, a 30-day job order, a 10-day notice of filing, and three additional steps. One US applicant applies and is rejected for lacking a stated minimum requirement; the reason is documented.
  • Year 5, January. PERM filed. Priority date established. No audit; certified in month 7.
  • Year 5, September. I-140 filed in EB-2 with premium processing. Approved in 15 days.
  • Year 5, October. Because Nadia was born in Egypt rather than India or China, EB-2 is current or nearly current under the applicable chart. She files I-485 with an EAD and advance parole application.
  • Year 6, April. Green card approved.

Total elapsed time from graduation: about five years, of which roughly two were spent waiting for a lottery. Had she been born in India, the same sequence would have produced an approved I-140 and a priority date, followed by a wait measured in years for a visa number — with AC21 portability as the mechanism that would let her change jobs in the meantime.

Compliance checklist for employers

Every hire

  • Complete Form I-9 within the statutory windows; do not demand specific documents.
  • Determine work authorization category and expiration date, and calendar it.
  • Confirm whether the role and worksite match the approved petition.

H-1B specifically

  • Obtain a certified LCA before filing; confirm the wage meets the higher of actual and prevailing.
  • Post notice at each worksite, or provide it to the bargaining representative.
  • Build the public access file within one working day; retain it for the required period.
  • Pay the required wage during nonproductive time; do not bench.
  • File an amended petition before any material change, including a new worksite outside the metropolitan area.
  • On termination, withdraw the petition and offer return transportation abroad.

Program administration

  • Calendar all status expirations at 12, 6, and 3 months out.
  • Track six-year H-1B limits and AC21 extension eligibility.
  • Retain the PERM audit file for five years.
  • Confirm export control licensing where a foreign national will access controlled technology — the deemed export rule applies to release of technology within the United States.
  • Document a consistent, written immigration sponsorship policy so decisions are not made ad hoc, and confirm it does not discriminate on the basis of citizenship status in violation of 8 U.S.C. § 1324b.

Frequently asked questions

Can we sponsor someone who is already here on a student visa? Usually yes, but the timing is governed by OPT expiration and the H-1B lottery calendar. Start eighteen months before you need them.

Is there a way around the H-1B lottery? Sometimes: cap-exempt employment, concurrent cap-exempt employment, L-1 if the person worked abroad for a related entity, O-1 if the record supports it, TN, E-3, E-2, or a green card path that runs in parallel.

What does the H-1B actually cost? Government filing fees vary by employer size and by whether premium processing is used, and several fees must be paid by the employer — the ACWIA training fee and the fraud prevention and detection fee cannot be passed to the worker. Budget for attorney's fees for the petition as an employer cost as well.

Our H-1B employee wants to work from home in another state. Do we need to do anything? Probably yes. A worksite outside the area of intended employment on the LCA generally requires a new LCA and an amended petition before the move.

Can the employee change jobs while the green card is pending? With H-1B portability, yes at the nonimmigrant level. At the green card level, AC21 permits a change to a same-or-similar position once the I-485 has been pending 180 days with an approved I-140.

How long is the wait for someone born in India? In the most oversubscribed categories, long enough that planning should assume many years and rely on AC21 portability and H-1B extensions beyond six years.

What happens if we lay off an H-1B worker? There is a limited grace period to find new sponsorship, change status, or depart. The employer should withdraw the petition and offer return transportation.

Does a green card application require a job offer? Usually. The exceptions are EB-1A and the EB-2 national interest waiver, both self-petitionable.

Conclusion

The immigration system is not difficult to understand; it is difficult to schedule. Every meaningful category has a queue, and the queues are set by statute, by country of birth, and by an annual lottery — none of which respond to urgency.

The employers that do this well share one habit: they raise the question at the offer stage rather than the start date, and they map the entire path — nonimmigrant status, extensions, PERM, priority date, visa availability — before the first form is filed. The employers that do it badly discover in August that the runway ended in July.

For the individual, the single most valuable asset in the system is an early priority date. Everything else can be worked around; the queue cannot.

Site visits, audits, and enforcement

Sponsorship creates an ongoing relationship with three agencies, each of which can arrive unannounced.

USCIS site visits. The Fraud Detection and National Security directorate conducts unannounced visits to H-1B and L-1 worksites. An officer typically verifies that the beneficiary works at the stated location, performs the stated duties, and receives the stated wage, and interviews both the beneficiary and a company representative. Prepare by ensuring the receptionist knows whom to call, the beneficiary's manager can describe the role consistently with the petition, and the petition file is retrievable within minutes. The most common adverse finding is not fraud; it is a job title or worksite that changed without an amendment.

Department of Labor investigations. Wage and Hour Division investigations under the H-1B program can be triggered by a complaint from any aggrieved party — including a former employee — or by a random selection for certain willful violators. The investigator asks for the public access file first. Remedies include back wages, civil money penalties, and, for willful violations or misrepresentation, debarment from filing petitions for one to three years, which is an existential outcome for a company that depends on sponsored staff.

Immigrant and Employee Rights enforcement. The Department of Justice's Immigrant and Employee Rights Section enforces 8 U.S.C. § 1324b, which prohibits citizenship status discrimination, national origin discrimination by smaller employers, unfair documentary practices in the I-9 process, and retaliation. Two recruiting practices draw particular attention: advertising positions as open only to US citizens or green card holders without a legal basis, and asking about sponsorship needs in a way that screens out work-authorized candidates. A lawful approach asks whether the candidate is authorized to work in the United States and whether they will now or in the future require sponsorship — and then applies the answer consistently.

Export controls. Releasing controlled technology or source code to a foreign national inside the United States is a deemed export to that person's country of nationality, and may require a license under the EAR or ITAR. Companies in aerospace, defense, semiconductors, encryption, and advanced materials should screen sponsored hires for deemed export exposure before granting system access. The H-1B petition itself requires an attestation regarding export licensing.

Practical guidance for the individual

The system is administered through employers, but the consequences fall on people. A few points worth knowing:

  • Status is not the visa. A visa is the travel document in the passport; status is the permission to remain, evidenced by the I-94 record. A visa can expire while status remains valid, and status can lapse while an unexpired visa sits in the passport.
  • Check the I-94 after every entry. Errors in the admit-until date are common and are the applicant's problem to catch.
  • Keep every document. Approval notices, I-94 records, LCAs, pay stubs, degree evaluations, and prior petitions. Reconstructing a fifteen-year status history for a naturalization application is far harder than filing it away.
  • Grace periods are short. Following a cessation of employment there is a limited discretionary grace period, and it is not a right. Begin the next filing immediately.
  • Travel with care once an I-485 is pending. Departure without advance parole can be treated as abandonment, subject to exceptions for those maintaining valid H or L status.
  • Do not let a spouse's eligibility go unexamined. Cross-chargeability to a spouse's country of birth can convert a decade-long wait into a short one, and it is missed constantly.
  • Get a second opinion before a change of status. Moving from a dual-intent category (H-1B, L-1) to a single-intent category (F-1, TN, B) can complicate a pending green card process in ways that are difficult to reverse.

Mergers, reorganizations, and the successor-in-interest problem

Corporate transactions disturb immigration filings in ways that surprise deal teams, and the questions arise after signing rather than before.

H-1B petitions. A successor in interest — an entity that assumes the predecessor's interests, obligations, assets, and liabilities — may generally continue to employ H-1B workers without filing amended petitions, provided it accepts the predecessor's LCA obligations in a document placed in the public access file and the terms of employment do not otherwise materially change. Where the transaction is an asset purchase in which liabilities are not assumed, that shelter may not apply, and new petitions may be required for every sponsored employee — a cost and timing item that belongs in the diligence report, not in the post-closing surprise column.

L-1 petitions. The qualifying corporate relationship between the foreign and US entities is the foundation of the classification. A reorganization that severs or restructures that relationship can invalidate the basis for approved petitions. Confirm the relationship survives, and document it.

PERM and I-140. A pending PERM generally cannot be transferred; a certified PERM and an approved I-140 may survive under successor-in-interest principles if the successor can establish it assumed the predecessor's relevant obligations and that the job opportunity is unchanged. Where the I-485 has been pending 180 days and the I-140 is approved, AC21 portability may make the question academic for the individual, because the person can move to a same-or-similar position at the successor.

Diligence items for any transaction involving sponsored employees: a list of all nonimmigrant workers with category, expiration, and worksite; the public access files; pending and approved petitions; PERM audit files; I-9 records and any prior audit history; E-Verify enrollment status; and any open Department of Labor or USCIS matters. Representations and a special indemnity are appropriate where the seller's compliance record is thin.

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This article is provided for general informational purposes and does not constitute legal advice. Immigration categories, fees, filing procedures, and visa availability change frequently and without notice. Consult qualified immigration counsel before making a hiring commitment that depends on sponsorship.