Labor Condition Application for H-1B: What It Is and How to File

Before a single page of the I-129 petition can be submitted to USCIS, there is a mandatory step that takes place at a completely different federal agency: the Labor Condition Application. The LCA is filed with the Department of Labor, processed within days, and its certification is a legal prerequisite for the H-1B petition. Without a certified LCA, the I-129 is dead on arrival.

Most H-1B workers know the LCA exists but assume it's something their employer handles automatically. That assumption is correct — but knowing what the LCA requires, what the employer is attesting to, and where it can fail helps you protect your own status.

What the LCA Actually Is

The Labor Condition Application (Form ETA-9035/9035E) is a document the employer files with the DOL's Office of Foreign Labor Certification (OFLC). By filing it, the employer makes binding legal attestations about the wages and working conditions of the H-1B worker.

This is fundamentally different from the I-129 petition to USCIS, which focuses on whether the job qualifies as a specialty occupation and whether the beneficiary qualifies. The LCA is about labor market protection — ensuring that bringing in an H-1B worker doesn't undercut domestic workers' wages or working conditions.

The LCA is not an approval in the traditional immigration sense. The DOL certifies it based on the employer's attestations, not after independently verifying those claims. The enforcement happens afterward, through audits and site visits, not during the certification process itself. This is why the compliance obligations that attach to a certified LCA are so significant: the certification is essentially taken on faith, and violations discovered later carry severe penalties.

The Four LCA Attestations

When the employer certifies the LCA, they are making four specific legal claims:

Attestation 1: Wage Requirement The employer will pay the H-1B worker at least the higher of:

• The prevailing wage for the occupation and geographic area (determined using DOL's OEWS data via the FLAG system), or
• The actual wage paid to other employees with similar experience and qualifications performing similar duties at the same location

The employer selects a wage level (I through IV) that reflects the complexity and experience required for the role, which determines the applicable prevailing wage percentile.

Attestation 2: Working Conditions The employment of the H-1B worker will not adversely affect the working conditions of US workers similarly employed. This means the H-1B worker's presence shouldn't reduce hours, benefits, or pay for comparable US employees.

Attestation 3: No Strike or Lockout There is no strike, lockout, or work stoppage in the occupational classification at the intended worksite. An employer in the middle of a labor dispute cannot use H-1B workers to replace striking US workers.

Attestation 4: Notice The employer has notified (or will notify within 30 days before filing) US workers in the same occupation at the intended worksite of the LCA filing. The notice must specify the wage, the occupation, the employment period, and the complaint procedure.

The FLAG System Filing Process

The LCA is filed electronically through the DOL's Foreign Labor Application Gateway (FLAG) at flag.dol.gov. The system is free to use. Here is the standard workflow:

Step 1: Create an employer account. The employer registers in the FLAG system with their FEIN. First-time filers with a new FEIN may encounter delays while DOL pre-verifies the FEIN — this manual verification can add one to two weeks, which is why employers with a new FEIN should start this process well before they need to file.

Step 2: Complete the ETA-9035E. The employer enters:

• The employer's legal name, FEIN, and corporate address
• The job title, SOC code, and number of workers covered
• The wage being offered and the wage level selected
• The geographic area of employment (state and MSA)
• The source of the prevailing wage determination
• The period of employment (beginning and end dates, not to exceed three years)
• Whether the position is full-time or part-time
• Whether there are multiple worksites

Step 3: Submit and await certification. Standard processing is typically 7 business days. The FLAG system provides a case number and status updates. When certified, the employer downloads the certified ETA-9035 with the DOL stamp and case number.

Step 4: Execute the workplace notice. The notice requirement must be met either on the day of filing or within 30 days before filing. For most employers, the notice is posted simultaneously with filing. The notice must remain posted for 10 consecutive working days.

Step 5: Compile the Public Access File. The PAF must be assembled within one working day of filing, even before certification arrives.

Common LCA Filing Errors

Selecting the wrong SOC code. The SOC code determines which OEWS wage data applies. A code that doesn't match the actual duties of the position creates a mismatch that DOL investigators will identify if the case is audited.

Selecting an artificially low wage level. The wage level must accurately reflect the complexity of the role. Level I for a position that requires independent judgment and specialized expertise is not defensible under audit.

Failing to cover all work locations. If the H-1B worker will work at multiple locations — even temporarily — each location in a different MSA requires its own LCA. For consulting firms placing workers at client sites, this is a frequent source of violations.

Inadequate electronic notice for remote workers. For workers without a fixed physical worksite, the electronic notice must be specifically designed to reach the affected workforce. Posting a notice on an internal portal that affected workers don't regularly use doesn't satisfy the requirement.

Filing an incorrect FEIN. The FEIN on the LCA must match the FEIN on the I-129. A mismatch creates administrative headaches and can require re-filing.

Not updating the LCA when material facts change. If the worker's location changes to a different MSA, or the job duties change materially, a new LCA may be required. Filing the amendment with USCIS without a supporting LCA covering the new conditions is a compliance failure.

What Happens When the LCA Is Denied

The DOL does not typically deny LCAs for evidentiary reasons the way USCIS issues RFEs. LCA denials are usually administrative: a FEIN mismatch, an error in the form, or a wage level selection that falls below the calculated prevailing wage. The FLAG system generates an error message indicating the problem, and the employer can correct and refile.

If the stated wage falls below the prevailing wage for the SOC code and MSA selected, the FLAG system will reject the filing. The employer must either increase the offered wage or adjust the wage level selection and provide a documented basis for the different level.

The Relationship Between the LCA and the I-129

The I-129 cannot be filed without a certified LCA. The petition must include a copy of the certified ETA-9035. The LCA and the I-129 must be internally consistent — the job title, SOC code, worksite, and wage on the LCA must match what's described in the I-129. Discrepancies between the two documents trigger RFEs from USCIS.

The LCA validity period covers the petition period but cannot exceed three years. If an employer wants to petition for a six-year initial H-1B (which USCIS allows as two consecutive three-year approvals), they will need two separate LCAs — one for each three-year period.

For a complete LCA compliance checklist and a breakdown of how the LCA supports the specialty occupation argument in the I-129, the US H-1B Specialty Occupation Visa Guide covers both the employer compliance side and the petition strategy side in detail.