The term “portal-to-portal” refers to the entire distance traveled from a person’s home door to their work door. In the context of employee compensation, however, the concept is a legal framework that determines when a worker’s travel time must be counted as compensable work hours. This framework is fundamental to understanding wage and hour compliance, establishing a clear boundary between an employee’s personal commute and time spent working for the employer’s benefit. The determination of when the workday officially begins and ends directly impacts an employee’s pay, especially concerning overtime eligibility for travel time.
Understanding the Legal Definition of Portal-to-Portal
Legally, the phrase “portal-to-portal” refers to the exclusion of certain travel from the definition of paid time. Federal law specifies that activities performed before the start or after the conclusion of an employee’s primary job duties are not compensable. The determination hinges on defining the employee’s principal activity, which is the main work an employee is hired to perform.
The law considers a principal activity to include all actions that are integral and indispensable to the performance of the job. For an activity to be integral and indispensable, it must be so closely related to the productive work that the main job cannot be performed without it. If an activity meets this standard, it is considered work time, even if it involves travel or preparation. Conversely, any activity that is not integral to the principal work is excluded from paid time.
The History and Purpose of the Portal-to-Portal Act
The modern interpretation of compensable time stems from the Portal-to-Portal Act of 1947 (PPA). Before this legislation, expansive Supreme Court rulings had broadened the definition of a workday under existing labor law. These rulings, such as Tennessee Coal Co. v. Muscoda Local 123 and Anderson v. Mt. Clemens Pottery Co., required employers to pay workers for activities that occurred on the premises before and after their main duties, including walking time.
This judicial interpretation led to a massive number of lawsuits seeking back pay for time previously considered non-work time, which became known as “portal-to-portal” claims. In response, Congress passed the PPA to retroactively and prospectively limit the scope of compensable activities. The Act’s primary purpose was to restrict the reach of the Fair Labor Standards Act (FLSA), specifically excluding the time spent traveling to and from the actual place where the principal activity is performed. This action provided relief to employers from potential liabilities that had emerged due to the broader court interpretations.
Activities That Are Not Compensable Under Federal Law
The PPA explicitly excludes certain routine activities from mandatory compensation, classifying them as preliminary or postliminary activities. The most common exclusion is the ordinary daily commute, which is the time an employee spends traveling from their home to the first worksite and from the last worksite back home. This travel is considered a personal expense and is not paid time.
The exclusion also applies to routine tasks performed before or after the main work, provided they are not integral to the job. Examples include walking across an employer’s property to reach a workstation, checking in or out, or waiting in line to receive equipment. However, if such activities are mandated by the employer and are directly necessary for the job, such as donning specialized protective gear, they may become compensable because they are integral and indispensable to the principal activity.
Specific Travel Scenarios That Require Compensation
Even with the limitations set by the PPA, federal law mandates compensation for certain types of travel that occur as part of the employee’s workday. These exceptions apply when the travel time serves the employer’s business and is considered part of the principal activity.
Travel Between Job Sites
Time spent traveling between different work locations after the employee has reported to the first worksite for the day is compensable. If an employee starts their shift at the main office and is then required to drive to a client’s location, the travel between the two sites is paid time. This rule recognizes that once the workday has commenced, all subsequent travel is for the employer’s benefit.
Travel During the Workday
Any travel that occurs during the employee’s normal working hours is considered compensable time, even if the employee is merely a passenger. This is referred to as the “all in a day’s work” rule, where the travel interrupts or replaces the employee’s normal job duties. For instance, traveling from a client meeting back to the office in the middle of the day must be paid.
Out-of-Town Travel Involving an Overnight Stay
When travel requires an employee to be away from home overnight, the time spent traveling is compensable if it cuts across the employee’s normal working hours. This includes the corresponding hours on non-working days, such as a Saturday or Sunday. If an employee normally works from 9 a.m. to 5 p.m., travel time occurring during those hours on a weekend must be paid. However, time spent as a passenger outside of those normal work hours, such as flying at night, is generally not paid.
Emergency Call-Backs and Special Assignments
Travel time for an emergency call-back after an employee has gone home is compensable, especially if the employee must travel a substantial distance. If an employee who regularly works at a fixed location is given a special one-day assignment in a different city, the travel time to and from that distant location is compensable. The employer may subtract the time the employee would typically spend on their normal commute.
How State Laws Affect Travel Compensation
The PPA establishes the federal floor for employee compensation regarding travel time. Individual state laws often set stricter requirements that provide greater protection for the worker. States like California and New York have regulations that define compensable time more broadly than the federal standard.
In states with more expansive definitions, activities that are excluded under the PPA, such as travel to an initial worksite or certain preliminary tasks, may be considered work time. Employers must adhere to whichever law, federal or state, provides the most beneficial standard for the employee.

