How Do You Calculate Hours Worked For Osha

Calculate employee hours worked for OSHA recordkeeping compliance

Comprehensive Guide: How to Calculate Hours Worked for OSHA Compliance

Understanding how to properly calculate hours worked is crucial for maintaining compliance with the Occupational Safety and Health Administration (OSHA) regulations. This guide provides a detailed explanation of OSHA’s requirements for tracking employee hours, including what counts as “hours worked,” common pitfalls to avoid, and best practices for accurate recordkeeping.

Why Accurate Hour Calculation Matters for OSHA

OSHA requires employers to maintain accurate records of employee hours worked for several important reasons:

• Injury and Illness Recordkeeping: OSHA’s recordkeeping standard (29 CFR 1904) requires employers to record work-related injuries and illnesses. The number of hours worked determines whether an employer is exempt from certain recordkeeping requirements.
• Incidence Rate Calculation: OSHA uses hours worked to calculate injury and illness incidence rates, which are key metrics for workplace safety performance.
• Regulatory Compliance: Accurate hour tracking ensures compliance with various labor laws and helps avoid potential fines and penalties.
• Workplace Safety Analysis: Proper hour tracking allows employers to identify patterns in injuries and illnesses relative to hours worked, helping to target safety improvements.

What Counts as “Hours Worked” According to OSHA

OSHA’s definition of “hours worked” is generally consistent with the Fair Labor Standards Act (FLSA) definition. The following activities typically count as hours worked:

1. All time during which an employee is required to be on the employer’s premises, on duty, or at a prescribed workplace
2. All time spent performing job duties, regardless of location
3. Time spent in training (including safety training) that is required by the employer
4. Time spent traveling as part of the employee’s principal activity (e.g., travel from job site to job site during the workday)
5. Time spent on call if the employee is required to remain on or so close to the employer’s premises that they cannot use the time effectively for their own purposes
6. Time spent donning and doffing required protective equipment (in certain circumstances)
7. Time spent in medical examinations required by the employer

Importantly, OSHA generally does not count the following as hours worked:

• Unpaid meal periods (typically 30 minutes or more) where the employee is completely relieved from duty
• Time spent commuting to and from work (home to work and back)
• Time spent on personal activities not related to work
• Time spent volunteering for activities not directly related to the employee’s job

OSHA’s Recordkeeping Exemptions Based on Hours Worked

OSHA’s recordkeeping standard includes partial exemptions for certain employers based on their size and industry classification. The number of employees (which is determined by hours worked) is a key factor in these exemptions:

Industry Type	Employee Threshold	Recordkeeping Requirement
Non-exempt industries (most manufacturing, construction, etc.)	10 or more employees	Must keep OSHA injury and illness records
Non-exempt industries	Fewer than 10 employees	Partially exempt from routine recordkeeping (but must still report fatalities, hospitalizations, etc.)
Exempt low-hazard industries (retail, service, finance, real estate, etc.)	Any number of employees	Partially exempt from routine recordkeeping (but must still report fatalities, hospitalizations, etc.)

Note: Even partially exempt employers must report to OSHA any workplace incident that results in a fatality, in-patient hospitalization, amputation, or loss of an eye (within specified timeframes).

Step-by-Step Guide to Calculating Hours Worked for OSHA

Follow these steps to accurately calculate hours worked for OSHA compliance:

1. Determine the pay period: OSHA doesn’t specify a particular pay period, but most employers use weekly, bi-weekly, or monthly periods. For consistency, we recommend calculating hours on a weekly basis.
2. Track all working time: For each employee, record:
   • Regular working hours (including overtime)
   • Paid breaks (typically 5-20 minutes)
   • Work-related training time
   • Job-related travel time (excluding normal commute)
   • Time spent donning/doffing required PPE (if applicable)
   • On-call time when the employee cannot use the time for personal purposes
3. Exclude non-working time: Do not count:
   • Unpaid meal periods (30+ minutes)
   • Personal time (not work-related)
   • Commuting time (home to work and back)
4. Calculate daily totals: For each workday, sum all working time and subtract any excluded non-working time.
5. Sum weekly totals: Add up the daily totals for each workweek (typically Sunday through Saturday).
6. Maintain records: Keep accurate records of hours worked for each employee, along with injury and illness records as required.
7. Calculate incidence rates: Use the total hours worked to calculate OSHA incidence rates for your workplace.

Common Mistakes in Calculating Hours Worked

Avoid these frequent errors that can lead to inaccurate hour calculations and potential OSHA compliance issues:

• Not counting all compensable time: Failing to include time spent in required training, donning/doffing PPE, or job-related travel.
• Incorrectly excluding break time: Counting short breaks (typically 5-20 minutes) as non-working time when they should be included as hours worked.
• Miscounting travel time: Not including travel between job sites during the workday or special assignments that require travel.
• Improper handling of on-call time: Not counting on-call time when employees are required to stay at or near the workplace.
• Rounding errors: Using inconsistent rounding practices that systematically undercount hours worked.
• Not maintaining proper records: Failing to keep accurate time records that can be verified in case of an OSHA inspection.
• Misclassifying employees: Incorrectly classifying workers as independent contractors to avoid counting their hours.

Best Practices for OSHA-Compliant Hour Tracking

Implement these best practices to ensure accurate hour tracking and OSHA compliance:

1. Use a reliable timekeeping system: Implement an electronic timekeeping system that accurately captures all working time. Avoid manual timecards which are prone to errors.
2. Train supervisors and employees: Ensure everyone understands what counts as hours worked and how to properly record time.
3. Develop clear policies: Create written policies that define:
   • What constitutes “hours worked”
   • How to record different types of working time
   • Procedures for correcting timekeeping errors
4. Conduct regular audits: Periodically review time records to identify and correct any inconsistencies or errors.
5. Document everything: Keep detailed records of all hours worked, including:
   • Regular working hours
   • Overtime hours
   • Training time
   • Travel time
   • On-call time
6. Stay updated on regulations: OSHA interpretations and court rulings can affect what counts as hours worked. Stay informed about any changes.
7. Consult with experts: If you’re unsure about how to classify certain activities, consult with labor law attorneys or HR professionals specializing in OSHA compliance.

How OSHA Uses Hours Worked Data

OSHA uses hours worked data primarily for calculating injury and illness incidence rates. These rates help OSHA:

• Identify high-hazard industries and workplaces
• Target inspection resources to the most dangerous workplaces
• Measure the effectiveness of safety programs and regulations
• Provide benchmarks for employers to compare their safety performance
• Identify trends in workplace injuries and illnesses

The two main incidence rates OSHA calculates are:

Incidence Rate	Formula	Purpose
Total Case Incidence Rate (TCIR)	(Number of injuries and illnesses × 200,000) ÷ Total hours worked by all employees	Measures overall recordable cases per 100 full-time equivalent workers
Days Away, Restricted, or Transferred (DART) Rate	(Number of DART cases × 200,000) ÷ Total hours worked by all employees	Measures more serious cases that result in days away from work, restricted work, or job transfer

The multiplier of 200,000 in these formulas represents the equivalent of 100 employees working 40 hours per week, 50 weeks per year (100 × 40 × 50 = 200,000).

Special Considerations for Different Industries

Different industries have unique considerations when calculating hours worked for OSHA purposes:

• Construction: Must carefully track time spent at different job sites, including travel between sites. The mobile nature of construction work makes accurate timekeeping particularly challenging.
• Healthcare: Must account for on-call time, especially for medical professionals who may be called in during off-hours. Also need to properly track time spent donning and doffing protective equipment.
• Manufacturing: Often deals with shift work and overtime. Must carefully track all production time, including time spent on machine setup and cleanup.
• Transportation: Must comply with both OSHA and Department of Transportation (DOT) regulations regarding hours of service. Special attention needed for sleep time in transportation industries.
• Retail: While many retail establishments are partially exempt from OSHA recordkeeping, those with 10+ employees must maintain accurate hour records. Special consideration needed for part-time and seasonal workers.
• Agriculture: Has some unique exemptions but must still track hours for non-exempt employees. Special considerations for seasonal and migrant workers.

Technology Solutions for Hour Tracking

Modern technology can significantly improve the accuracy and efficiency of hour tracking for OSHA compliance:

• Time and Attendance Software: Systems like Kronos, ADP, or Paycom can automatically track hours worked and generate reports for OSHA compliance.
• Mobile Apps: Allow employees to clock in/out from job sites, track travel time, and record other working hours using their smartphones.
• Biometric Time Clocks: Use fingerprint or facial recognition to prevent buddy punching and ensure accurate time recording.
• GPS Tracking: Particularly useful for mobile workforces to accurately track time spent at different locations.
• Integration with Payroll: Systems that integrate time tracking with payroll can help ensure consistency between hours worked and hours paid.
• OSHA-Specific Software: Some safety management systems include built-in OSHA recordkeeping features that automatically calculate incidence rates based on hours worked.

Legal Cases Affecting Hours Worked Calculations

Several important legal cases have helped define what counts as “hours worked” for both FLSA and OSHA purposes:

• Anderson v. Mt. Clemens Pottery Co. (1946): Established that time spent in preliminary and postliminary activities (like walking to workstations or changing clothes) can be compensable if they are integral and indispensable to the principal activities.
• Integrity Staffing Solutions v. Busk (2014): Ruled that time spent in security screenings at the end of shifts was not compensable because it was not integral and indispensable to the employees’ principal activities.
• Alvarez v. IBP, Inc. (2003): Addressed the compensability of time spent donning and doffing protective gear and walking to workstations.
• Perez v. Mountaire Farms, Inc. (2015): Reinforced that time spent donning and doffing required protective equipment is generally compensable.

These cases demonstrate that the definition of “hours worked” can be nuanced and may require legal interpretation in specific situations.

OSHA Inspections and Hour Records

During an OSHA inspection, compliance officers will typically review your hour records to:

• Verify that you meet the employee threshold for recordkeeping requirements
• Calculate your injury and illness incidence rates
• Assess the accuracy of your injury and illness records
• Identify any patterns between hours worked and workplace injuries/illnesses

To prepare for potential inspections:

1. Maintain hour records for at least 5 years (OSHA’s record retention requirement)
2. Ensure your records are complete and accurate
3. Be able to explain how you calculate hours worked
4. Have documentation supporting any exemptions you claim
5. Train a designated person to interact with OSHA inspectors

Calculating Hours for Temporary and Part-Time Workers

Temporary and part-time workers present special considerations for hour calculations:

• Temporary Workers:
  • Hours worked by temporary employees typically count toward your total employee hours for OSHA recordkeeping purposes
  • Both the staffing agency and the host employer may have recordkeeping responsibilities
  • Clear communication between the staffing agency and host employer is essential
• Part-Time Workers:
  • All hours worked by part-time employees must be counted
  • Part-time employees are included in the employee count for determining OSHA recordkeeping requirements
  • Special attention needed to ensure all hours are properly recorded, as part-time workers may have more variable schedules

International Considerations

For multinational companies, it’s important to note that:

• OSHA’s requirements apply only to workplaces in the United States and its territories
• Other countries have their own occupational safety and health regulations and hour tracking requirements
• Some countries may have more stringent requirements for tracking and limiting working hours
• Global companies should consult with local experts to ensure compliance with all applicable regulations

Future Trends in Hour Tracking and OSHA Compliance

Several trends are likely to impact hour tracking and OSHA compliance in the coming years:

• Increased Use of Wearable Technology: Devices that can track location, movement, and biometric data may provide more accurate hour tracking but also raise privacy concerns.
• Artificial Intelligence: AI may be used to analyze hour patterns and predict potential safety issues before they occur.
• Remote Work Challenges: The growth of remote work presents new challenges for accurately tracking hours worked outside traditional workplaces.
• Real-Time Reporting: OSHA may move toward requiring more real-time reporting of hours and incidents rather than annual summaries.
• Integration with Safety Systems: Hour tracking may become more closely integrated with comprehensive safety management systems.

Authoritative Resources on OSHA Hours Worked

OSHA Recordkeeping Overview (OSHA.gov) FLSA Hours Worked Advisor (U.S. Department of Labor) OSHA Standard Interpretations (OSHA.gov)