Industry-Specific Overtime Rules Overview
The Fair Labor Standards Act sets the default: time and a half after 40 hours in a workweek. But the FLSA also carves out exceptions for entire industries. Some sectors use the 8/80 rule instead. Others fall under the Department of Transportation, not the Department of Labor. A few are governed by labor laws that predate the FLSA entirely.
Healthcare, construction, retail, hospitality, trucking, and agriculture all deviate from the standard 40-hour weekly threshold. The biggest deviation belongs to airlines and railroads, which are entirely exempt from FLSA overtime. Sector by sector, here is what actually applies.
Healthcare: 8/80 Rule and Mandatory OT Restrictions
Nurses and hospital staff often work 12-hour shifts. Three days on, four days off. That means 36 hours in a week, under the federal threshold. But when they pick up an extra shift, the hours pile up fast.
How the 8/80 rule works
Hospitals and nursing homes can use the 8/80 rule. Instead of paying overtime after 40 hours in a single week, they calculate overtime over a 14-day period. Under this method, overtime is owed for any hours worked beyond 8 in a single day, or beyond 80 hours in the two-week period, whichever comes first.
The catch? The 8/80 rule is optional. The employer must choose it in advance. If they do not, standard weekly overtime applies.
State rules that override the federal option
Some states add extra layers. California requires daily overtime for healthcare workers who exceed 8 hours, regardless of the 8/80 election. Mandatory overtime for nurses is outright banned in several states, including Oregon, Washington, and Connecticut, except during declared emergencies.
A real shift under the 8/80 rule
Maria works at a hospital using the 8/80 rule. She works 12 hours Monday, Tuesday, and Wednesday (36 hours), then returns for 12 hours Thursday. Her Thursday shift hits the daily overtime threshold at hour 8, so 4 of those hours are paid at time and a half. No weekly calculation needed.
The overtime for nurses and healthcare guide breaks down every state variation and the 8/80 election process.
Construction: Prevailing Wage and Overtime
Construction runs on weather. In northern states, that means the season is compressed, and so are the hours. A roofer in Minnesota working 60-hour weeks from May through September is not unusual.
Public vs private projects
Under the FLSA, construction workers are entitled to overtime after 40 hours. But the Davis-Bacon Act and similar state "little Davis-Bacon" laws require contractors on public works projects to pay "prevailing wage" rates. These rates often include overtime provisions that exceed federal law.
The practical effect? Framing houses on a private residential project means standard FLSA rules. Pouring foundations for a new public school might trigger prevailing wage requirements that mandate overtime after 8 hours per day.
When the overtime spike hits
The peak season runs May through September in northern states, and that is exactly when overtime hours spike. Project managers should budget for it. Workers should track every hour.
Retail: Holiday Season Overtime Patterns
November and December are the retail gauntlet. Black Friday through Christmas Eve, stores extend hours, and employees work back-to-back shifts.
The predictable overtime squeeze
The FLSA requires time and a half after 40 hours, and most retailers schedule around that threshold to avoid paying it. But when the holiday rush hits, those schedules stretch.
Some states make it harder. In California, daily overtime kicks in after 8 hours, so a retail worker who clocks 10 hours on Black Friday gets 2 hours of overtime, even if they only worked 38 hours that week. New York has similar daily rules for certain retail workers.
Holiday pay is not overtime
The common mistake? Assuming holiday pay is overtime. It is not. Working Thanksgiving at time-and-a-half as a "holiday premium" is a benefit, not a legal requirement. And it does not count toward the overtime calculation.
Hospitality: Tipped Employees and Spread of Hours
Restaurant and hospitality workers face the most confusing overtime landscape. The federal tip credit allows employers to pay a cash wage below minimum wage, provided tips bring the worker up to the full minimum. But overtime calculations get complicated because the regular rate includes the tip credit.
How the tip credit affects overtime
If your cash wage is below the full minimum and tips cover the difference, your regular rate for overtime purposes is still the full minimum wage, not your cash wage. The overtime rate is calculated on the full amount, and then the tip credit is applied. The federal minimum cash wage for tipped employees is set by the Department of Labor. Check the Wage and Hour Division website for the current rate, as it changes.
New York's spread of hours rule
New York adds another layer: spread of hours pay. If a workday exceeds 10 hours from start to finish, including unpaid breaks, an extra hour at the minimum wage is owed. This is separate from overtime. It is on top of it.
A server in New York works from 11 AM to 11 PM, a 12-hour span. Even with a 2-hour break (10 hours of work), the spread of hours rule triggers an extra hour of pay at minimum wage. That is in addition to any overtime due.
The overtime for tipped employees guide walks through the full calculation, including how tips factor into the regular rate.
Trucking and Logistics: DOT Hours of Service vs FLSA
Most people are surprised by this fact: truck drivers are often entitled to no overtime at all.
The motor carrier exemption
The Federal Motor Carrier Safety Administration regulates commercial drivers under the Department of Transportation's hours-of-service rules. These rules cap driving time at 11 hours per day and 70 hours per 8-day period. But the DOT rules do not require overtime pay. They only limit hours.
The FLSA's overtime provision has a specific exemption for motor carriers. A driver engaged in interstate commerce is not entitled to overtime, regardless of how many hours worked. The DOT rules are about safety, not compensation.
When overtime does apply
A long-haul trucker can work 60 hours in a week and receive straight pay for every hour. The only way overtime kicks in is if the driver's duties fall outside the DOT exemption, like local delivery drivers who cross state lines only occasionally.
The overtime pay for truck drivers page explains the interstate commerce test in detail.
Agriculture: State Phase-In Schedules
Agricultural workers have historically been excluded from FLSA overtime. That is changing, but it is happening at the state level, and the phase-ins are slow.
California led the way
California's AB 1066 gradually lowered the overtime threshold for agricultural workers. As of 2022, the threshold reached 40 hours per week for employers with 26 or more employees. Smaller farms got more time.
Other states following
Washington and Colorado have similar phase-in schedules. Minnesota and Montana have their own agricultural overtime provisions.
The key takeaway? Overtime eligibility in agriculture depends entirely on the state and the employer's size. The federal FLSA does not protect agricultural workers. The overtime pay for agricultural workers guide has state-by-state details and current phase-in dates.
Airlines and Railroads: Railway Labor Act
This is the biggest exception of all. Airlines and railroads do not just have different overtime rules. They are entirely exempt from the FLSA.
A separate legal framework
The Railway Labor Act of 1926 governs labor relations for railroads and airlines. It was designed to minimize strikes that could cripple the economy, and it created a separate framework for collective bargaining. The FLSA specifically excludes employees covered by the Railway Labor Act from overtime protections.
What this means for pay
Flight attendants, pilots, and railroad engineers are not entitled to FLSA overtime. Their pay is determined entirely by collective bargaining agreements, not federal labor law.
A flight attendant working 80 hours in a month is paid according to a union contract, which might be based on flight hours, not total hours worked. Railroad workers' overtime provisions are negotiated and often tied to miles traveled rather than hours on the clock.
The practical takeaway: the state overtime rules comparison does not apply to aviation or rail workers. Recourse is the union contract, not the Department of Labor.
How to Calculate Overtime by Industry
The formula stays the same. The threshold changes.
Standard FLSA: 40 hours per week
At a $15 hourly rate, a 40-hour week produces no overtime. Gross pay is 40 regular hours at $15. The overtime rate would be $22.50, but zero overtime hours means zero additional pay.
At 45 hours: 40 regular hours at $15 plus 5 overtime hours at $22.50. Gross pay reaches $712.50.
At 50 hours: 40 regular hours at $15 plus 10 overtime hours at $22.50. Gross pay reaches $825.00.
At 60 hours: 40 regular hours at $15 plus 20 overtime hours at $22.50. Gross pay reaches $1,050.00.
How the math scales at higher rates
At a $20 hourly rate and 45 hours: 40 regular hours at $20 plus 5 overtime hours at $30. Gross pay reaches $950.00.
At $20 and 60 hours: 40 regular hours at $20 plus 20 overtime hours at $30. Gross pay reaches $1,400.00.
At a $25 hourly rate and 50 hours: 40 regular hours at $25 plus 10 overtime hours at $37.50. Gross pay reaches $1,375.00.
At a $35 hourly rate and 45 hours: 40 regular hours at $35 plus 5 overtime hours at $52.50. Gross pay reaches $1,662.50.
At $35 and 50 hours: 40 regular hours at $35 plus 10 overtime hours at $52.50. Gross pay reaches $1,925.00.
Where the thresholds differ
These examples all assume the standard 40-hour weekly threshold. For healthcare workers under the 8/80 rule, substitute an 8-hour daily threshold or an 80-hour biweekly threshold. For California retail workers, substitute an 8-hour daily threshold. The arithmetic is identical. Only the trigger point moves.
The how to calculate overtime pay guide covers weighted average overtime for multiple pay rates. Salaried employees face different rules entirely. Check overtime pay for salaried employees before assuming exempt status. The Department of Labor sets the salary threshold that determines exemption. As of July 2024, that threshold was $844 per week. Verify the current figure at dol.gov/whd, as these thresholds update.
What to Do Next
Identify your industry. Confirm your state's overtime laws. The state overtime rules comparison checks both at once.
If you work in healthcare, confirm whether your employer uses the 8/80 rule. Get it in writing. In retail, track daily hours during November and December. In agriculture, check your state's phase-in schedule and your employer's size. In aviation or rail, review your union contract. The FLSA will not help you.
Verify every pay stub. Use the overtime calculator to run the numbers yourself. Do not assume the employer calculated correctly. The rules are complicated. Your money does not have to be.