When does standby time become paid time under on call time pay rules?
A maintenance worker finishes her shift at 5:00 PM. Her company hands her a pager and tells her she must respond to any call within 10 minutes. She cannot leave her apartment building. She gets called twice, for 20 minutes each time. The company pays her only for the 40 minutes of actual repairs.
That worker is owed pay for the entire 15 hours she was on standby. The Department of Labor would treat the full period as hours worked because the restrictions on her movements were so severe she could not use the time for her own purposes.
The rule: standby time is compensable when the restrictions are so tight that the worker cannot effectively use the time for personal activities. When the worker can freely pursue personal interests but simply must be reachable, the time is not counted as hours worked.
Engaged to wait or waiting to be engaged: how on call time pay rules draw the line
The Fair Labor Standards Act does not have a single yes-or-no rule. Courts and the Department of Labor apply a facts-and-circumstances test. The core question: is the worker "engaged to wait" or "waiting to be engaged"?
Engaged to wait means the organization is requiring the person to be on duty, even if no work is happening right now. A firefighter living at the station during a 24-hour shift is engaged to wait. The time counts as hours worked.
Waiting to be engaged means the person is waiting for work to start or resume but is free to do what they want. A retail worker standing by the register at opening time is waiting to be engaged. That time counts too, but that is different from standby situations where the person is off the premises.
For standby arrangements specifically, the factors that matter are:
1. Location restrictions
Can the person stay home? Or must they remain on the organization's premises? Being required to stay on-site almost always makes the time compensable. Being required to stay within a small geographic area (a specific building, a parking lot, a few blocks) also points toward compensable time. Being able to stay at home with no further restriction points away.
2. Response time requirements
A 5-minute response window is much more restrictive than a 30-minute window. Very short response times suggest the person cannot engage in normal personal activities. A two-hour response window suggests they can.
3. Frequency of calls
If someone gets called back to work every 30 minutes during a standby period, the interruptions themselves make the time essentially work time. If they get called once during an eight-hour period, the time between calls is more likely to be non-compensable waiting time.
4. Whether the person can trade standby shifts
If the worker can find their own replacement, that suggests less control by the organization. If the organization dictates the schedule unilaterally, that points toward compensable time.
5. The nature of the business
A hospital that must have a surgeon available for emergencies has different operational needs than a retail store. But the organization's needs do not override the worker's right to pay. The question is still how much the organization restricts the person's freedom.
Common standby situations under on call time pay rules
On-site standby
If you must stay at your workplace during a meal break or between shifts, that is hours worked. The organization is requiring your presence. You cannot use the time freely.
Pager or phone duty from home
This is the most common gray area. If you must carry a phone or pager but can otherwise do whatever you want at home (cook, sleep, watch TV, run errands within your neighborhood) the time is generally not compensable. If you must stay within a small radius, drop everything immediately, and cannot engage in any activity that would prevent you from responding, the time is compensable.
Sleeping on the premises
Some organizations require workers to sleep at the workplace (night watchmen, residential building managers, firefighters). That time is compensable. The organization and worker can agree to exclude up to eight hours of sleep time from compensable hours if the worker has a private sleeping area and is free to sleep without interruption. But if the worker is called back to duty during the sleep period, the time spent on duty counts.
Waiting for a repair or delivery
A technician waiting at a client site for parts to arrive is generally engaged to wait. The time counts. But if the technician leaves the site and returns later, the gap might not count, unless the organization restricted the technician's activities during the gap.
Volunteer standby
Some workers volunteer to be on standby without compensation. Under the FLSA, a worker cannot waive their right to pay. If the organization knows or has reason to believe the person is working or is restricted from using their time freely, the organization must pay, even if the person said they would do it for free.
What recordkeeping rules require for on call time pay rules
If standby time is compensable, it must be recorded just like any other hours worked. The FLSA requires organizations to keep records of hours worked each day and each week. If the organization uses a time clock, the standby time should show on the time card. If the organization uses a different system (pager logs, manual sheets), those records must be kept for at least two years.
Organizations that fail to record compensable standby time risk wage claims. The Department of Labor can go back two years for unpaid wages (three years for willful violations). Some state laws allow longer lookback periods.
Do state on call time pay rules override federal law?
Some states have stricter rules than federal law. California, for example, has its own wage orders that define "hours worked" more broadly. California courts have held that standby time is compensable if the worker is subject to the organization's control, even if the worker is at home. Other states follow federal precedent more closely.
If state law is more protective, state law applies. Organizations operating in multiple states should check each state's rules. Workers who think they are owed pay should check their state labor department's guidance.
What should you do next about on call time pay rules?
If you run a business: Review your standby policies against the factors listed above. If your policy requires workers to stay on-site or respond within a very short window, you should treat that time as hours worked and record it. If you are not sure, assume the time is compensable. The cost of paying for it is far less than the cost of a wage claim.
If you are a worker: Keep your own log of standby periods. Write down the date, the start and end times, the restrictions you were under, and how many times you were called. If you think your organization is not paying for time that should be paid, start with your state labor department or a private employment attorney.
The Portal-to-Portal Act: What Counts as Hours Worked page explains the broader rules about what counts as compensable time. The Wage Theft Through Time Cards page covers what to do if you suspect your organization is not paying for all time worked.