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A permanent hire can look promising in an interview and still fall short once the pace. Attendance expectations, and safety requirements of a warehouse or production floor become real. That is why a structured evaluation period matters for DFW employers.

The temp to perm 520 hour evaluation period gives an employer about 90 days to assess a worker’s performance, attendance, reliability, and workplace fit before making a permanent hiring decision. Both the employer and the worker can evaluate whether the role is a sustainable match.

Contact Eclipse for a consultation about temp-to-perm staffing. For warehouse, logistics, transportation, and manufacturing teams, this approach creates a practical checkpoint between placement and permanent commitment. It also gives managers time to observe performance in the actual work environment, supported by Eclipse’s consultative screening and staffing process. Understanding what the 520-hour benchmark includes helps employers use that time deliberately, rather than treating it as an automatic conversion date.

What Is the 520-Hour Temp-to-Perm Evaluation Period?

The 520-hour evaluation period is a common temp-to-perm benchmark that gives an employer roughly 90 days of full-time work to assess a candidate before making a permanent hiring decision. The timeline is a practical industry standard, not a universal legal requirement, so the staffing agreement should define the applicable hours, dates, and conversion terms. Industry guidance identifies 90 days as the most common trial period.

In a warehouse, logistics, transportation, or manufacturing assignment, the worker joins the client company’s operation immediately. The staffing agency remains the worker’s formal employer during the evaluation window, while the client company provides day-to-day supervision, assigns tasks, and observes performance. Both sides are evaluating fit before the employer commits to a permanent hire.

How the arrangement works in practice

The 520-hour benchmark creates a clear checkpoint for the staffing agency, employer, and worker. Instead of making a decision based only on an interview or resume. The client can observe how the employee handles the actual schedule, equipment, workflow, safety expectations, and team environment. The worker also gains a realistic view of the role and workplace.

The hour threshold provides an objective timeframe for the evaluation. It helps prevent an open-ended trial and gives the parties a shared reference point for discussing conversion. The exact process can vary by agreement, role, and business need. A demanding or specialized position may require a different evaluation timeline than a highly measurable warehouse role.

Key features of a 520-hour evaluation period

  • Approximately 90 days: For a full-time schedule, 520 hours generally corresponds to about 90 days of work.
  • Agency employment: The staffing agency typically employs the temporary worker during the evaluation period.
  • Client supervision: The client company directs the employee’s daily work and evaluates results in its own operating environment.
  • Two-way evaluation: The employer assesses performance and fit, while the worker decides whether the role and workplace are a good long-term match.
  • Defined conversion benchmark: The 520-hour mark gives the parties a standardized point to review permanent employment, subject to the staffing agreement.

For DFW employers, this structure supports a more informed hiring decision without separating evaluation from real production conditions. It also creates a straightforward framework for communicating expectations from the first shift through the conversion discussion.

What Employers Observe During the Evaluation

The evaluation period gives employers a view of how a candidate performs in the actual workplace, not only during an interview or screening call. For warehouse, logistics, and manufacturing roles, that real-world evidence helps managers make a more informed permanent hiring decision. Reducing turnover and staffing risk starts with observing the behaviors that affect daily operations.

  • Attendance and punctuality: Managers can track whether the employee arrives ready for scheduled shifts, follows call-off procedures, and maintains dependable attendance. Reliability matters because even a qualified worker can disrupt production when absences or late arrivals become a pattern.
  • Job performance and productivity: Employers assess how quickly the employee learns the role, follows instructions, maintains pace, and completes work accurately. A warehouse role may provide measurable performance evidence within weeks, while more complex assignments can require a longer observation period. Job complexity affects how quickly performance becomes clear.
  • Safety and compliance: Supervisors observe whether the employee follows established safety procedures, uses equipment appropriately, maintains the required work area, and responds correctly to coaching. Consistent compliance is part of being ready for a permanent role.
  • Team and workplace fit: Day-to-day work shows how the candidate communicates with supervisors, collaborates with coworkers, accepts feedback, and adapts to the employer’s operating standards. The 520-hour period gives the company enough runway to evaluate skills and whether the worker meshes with the team, making it a practical risk-mitigation strategy. Both sides evaluate fit during the trial period.
  • Performance during seasonal peaks: A candidate may look dependable during a normal week but face different demands during a seasonal surge. Employers can evaluate attendance, sustained output, flexibility, and response to higher workloads before making a permanent commitment. If more time is needed to assess long-term output or peak-season performance, the parties can discuss a formal extension.

These observations should be reviewed against the actual requirements of the position, not against a vague impression. Clear expectations and regular feedback help employers identify strengths, address concerns early, and determine whether permanent employment is the right next step.

What Happens When the Evaluation Period Ends?

When a temporary employee reaches the agreed hour threshold, the employer and staffing partner review the assignment and determine whether to move forward with permanent employment. In many temp-to-perm arrangements, 520 hours is the conversion benchmark, although the governing agreement may also specify a calendar date or other conditions. Conversion cannot occur before that threshold unless the employer uses the early-conversion option outlined in the contract.

Conversion at the agreed threshold

Reaching 520 hours makes the candidate eligible for conversion. It does not automatically create a permanent hire. The employer still confirms that the worker has met expectations for attendance, productivity, safety, communication, and team fit. If the decision is positive, the staffing agency and employer coordinate the transition, including the effective date and any employment documentation required.

The hour threshold also gives the staffing agency time to recover the investment involved in recruiting, screening, and onboarding the candidate. That is why a conversion fee may apply when an employer hires the worker before the full evaluation period is complete. The fee is designed to compensate the agency for markup revenue it would otherwise have received during the remaining trial period, rather than representing a published staffing rate. The agreement should identify the threshold and early-conversion terms before the assignment begins.

When the employer is ready early

Sometimes the right employee proves their value quickly. If an employer is convinced that the worker is a strong long-term fit, an early-conversion fee may provide a path to permanent employment before 520 hours. This option can help an operation secure dependable talent without waiting through the entire evaluation period. Employers should review the specific agreement with their staffing partner so the decision, timing, and applicable terms are clear.

When timing or more evaluation time changes the plan

A strong performance review does not always lead to immediate conversion. Corporate budget cycles and headcount approvals can delay the permanent transition even when the employer wants to retain the worker. In that situation, the temporary assignment may continue beyond the benchmark until the next budget period or approval is available.

An employer can also request a formal extension when more time is needed to evaluate attendance, long-term output, or performance during a seasonal peak. The extension should be documented with the staffing partner, along with the reason for the additional evaluation time and the next review point. Clear communication keeps the worker informed and gives the employer a structured way to make a confident decision.

How 520 Hours Compares to Industry Standard Probationary Periods

A traditional direct-hire probationary period begins after the employer has already committed to a permanent hire. A temp-to-perm evaluation period creates a different sequence: the employer observes performance in the actual role before deciding whether to convert the worker. That distinction matters when a hiring mistake can cost 30% to 50% of annual salary through recruiting, training, lost productivity, and replacement expenses. The Society for Human Resource Management has reported that the full impact can reach up to five times annual salary.

520-hour temp-to-perm evaluation compared with a traditional direct-hire probationary period
Consideration 520-hour temp-to-perm evaluation Traditional direct-hire probation
Risk timing Performance, attendance, safety habits, and team fit are evaluated before a permanent offer. The employer has made the permanent hiring decision before the probationary period begins.
Cost exposure Reduces the chance of committing permanent headcount before real-world fit is demonstrated. Pricing and conversion terms remain consultative and contract-specific. Recruiting, onboarding, and replacement costs can accumulate even when the hire does not work out.
Flexibility The employer can convert when the worker meets expectations, subject to the staffing agreement and applicable terms. The employer may need to manage a failed hire through reassignment, termination, or another recruiting cycle.
Assessment timeframe About 90 days for a full-time schedule, or roughly 520 hours. Specialized roles may use six months, or about 1,040 hours. Often a calendar-based period set by company policy, which may not align with the role’s busiest operating conditions.

The 520-hour benchmark is common because 90 days gives an employer enough time to observe consistency rather than a strong first week. It also provides a clear, objective point for discussing conversion. In warehouse, logistics, transportation, and manufacturing roles, the evaluation can include regular shifts, changing workloads, safety expectations, and seasonal demand. For technical or specialized positions, a longer arrangement may be more appropriate because performance issues can take longer to surface.

Industry demand reflects this risk-conscious approach. The American Staffing Association reported that temp-to-hire placements increased 23% year over year in 2025. Employers comparing the models can review this temp to perm vs direct hire guide, then discuss the evaluation timeframe and conversion terms that fit their position.

How Does This Protect Your Business From a Costly Mis-Hire?

A permanent hiring decision carries more risk than a resume can show. In light industrial staffing, the 520-hour evaluation period gives your team time to verify performance, reliability, and fit in the actual work environment before making a long-term commitment.

It replaces assumptions with observed performance

Interviews can confirm experience, but they cannot fully show how someone handles production targets, safety expectations, schedule changes, or the pace of a busy warehouse. During the evaluation period, supervisors can assess the employee while work is happening. They can review attendance, output, teamwork, communication, and response to coaching using evidence rather than impressions.

That distinction matters because a bad hire can cost an employer an estimated 30% to 50% of the employee’s annual salary after recruiting. Training, lost productivity, and replacement expenses are considered, according to industry estimates. The Society for Human Resource Management has reported that the full impact can reach up to five times the position’s annual salary. The 520-hour structure does not eliminate every hiring risk, but it creates a practical checkpoint before that risk becomes a permanent staffing decision.

It exposes reliability issues before they become expensive

Attendance and consistency are especially important in light industrial operations. One unreliable worker can increase overtime, disrupt shift coverage, and place additional pressure on dependable employees. The CDC Foundation estimates that worker illness and injury cost U.S. employers $225.8 billion annually, demonstrating the broader business impact of workforce absence and lost productivity. That figure is not a prediction for any one employer, but it underscores why reliable staffing deserves deliberate evaluation.

A temp-to-perm assignment allows managers to see whether a worker arrives prepared, follows safety procedures, maintains expected output, and remains dependable through changing demands. If the fit is not right, the employer has more flexibility to make a change before extending a permanent offer.

It creates a lower-risk path to a permanent hire

The model is designed to bridge temporary work and permanent employment while lowering hiring risk. Employers confirm fit under real conditions instead of relying only on a short interview process. One staffing industry source describes this evaluate-then-convert approach as measurably lower-risk than a direct hire, citing a 98.94% retention rate in its own placement context. That result should be understood as a provider-specific claim, not a guarantee, but the underlying principle is sound: more direct observation can support better decisions.

For employers comparing options, review the temp to perm hiring benefits and consider where a structured evaluation can protect your operation from avoidable turnover, lost productivity, and rushed hiring decisions.

Ready to reduce mis-hire risk? Contact Eclipse Light Industrial Staffing for a temp-to-perm consultation.

Frequently Asked Questions

What does 520 hours represent in a temp-to-perm assignment?

It is a defined evaluation benchmark that corresponds to roughly 90 days of full-time work. During this period, the employer can assess performance in the actual role while the staffing agency remains the worker’s employer and the client directs day-to-day work. The assignment terms should state how hours are counted and when conversion eligibility begins. Industry guidance identifies 90 days as the most common trial-period benchmark.

Can an employer hire the worker before 520 hours?

Often, yes, if the staffing agreement provides an early-conversion option. The employer and agency should confirm the applicable terms first, including any conversion fee, which may compensate the agency for recruiting, screening, onboarding, and the remaining assignment period. Do not assume early conversion is automatic or use it without written agreement.

What should employers evaluate during the 520-hour period?

Track the requirements that matter in the specific position: attendance, safety compliance, productivity, quality, teamwork, communication, and the ability to handle normal or seasonal workload changes. A warehouse role may produce measurable performance data within weeks, while a more complex role may require a longer observation period. Use documented feedback rather than relying on a single busy shift.

What happens if the employer needs more time after 520 hours?

Conversion is not always immediate. A company may request a formal extension when it needs more evidence of long-term output, attendance, or performance during a seasonal peak. Budget or headcount approval can also delay a permanent offer even when the worker is performing well. Review the agreement with the staffing agency and document the next decision date.

Ready to Explore Temp-to-Perm Staffing?

A structured evaluation period can help you assess performance, reliability, and fit before making a long-term hiring decision. Contact Eclipse to discuss your workforce needs and determine whether temp-to-perm staffing is the right approach for your operation. Contact Eclipse for temp-to-perm staffing solutions.