Flagger Certification by State: 2026 Rules and Renewal

What this guide covers

This guide sorts it out. We read the current state DOT specifications, statutes and training pages for all 50 states and Washington, DC (checked September 30, 2026) and put the answer for each in one table: is a card required on state highway work, which training counts, how long it lasts, and whether another state's card is accepted. Below the table you will find how the national programs work, the reciprocity map, and what to do first if you want flagging work this month.

Two things before you scroll. First, the rules below are the state DOT's rules for work on state highways. Cities, counties, utilities and private owners can require more, and most require at least the same. Second, these specs change; every row names the spec or policy we read so you or your employer can confirm before a job.

The short version

• Most states require a card. By our count, 40 states plus DC require a flagger training card, certificate or written verification on state DOT work. Seven more require documented training without a formal statewide card (Alabama, Indiana, Kentucky, Louisiana, Michigan, New Jersey, and Hawaii by contract), and three (Ohio, Oklahoma, Arkansas) leave the choice of program to the contractor or project owner.
• The two national cards are ATSSA and NSC. The American Traffic Safety Services Association (ATSSA) and the National Safety Council (NSC) flagger courses are accepted, or are the basis of the state course, in the large majority of states. An ATSSA card is normally good for 4 years.
• A handful of states run their own program and do not accept a plain national card: Florida, North Carolina, Minnesota, South Dakota, California on Caltrans work, and Oregon and Washington (which accept each other's cards but not the national one). If you plan to work in one of these, take that state's course.
• Card life runs from 2 to 4 years. Colorado, Massachusetts, Wisconsin, Vermont, Rhode Island, Nebraska, South Dakota and Kentucky work on a 2-year cycle; most others are 3 or 4 years.
• Online courses are often not accepted. Florida, Georgia, Texas, Nevada, Illinois, California, Idaho, Montana, Mississippi, Minnesota, Oregon, Washington and Rhode Island want in-person training. Check before you pay for an online class.
• You must be 18 wherever a minimum age is written (Colorado, Massachusetts, Nevada, South Dakota, Oregon, Washington, Utah), and every training provider we checked requires it.

How flagger certification works

The federal baseline is training, not a card. The Manual on Uniform Traffic Control Devices (MUTCD, 11th Edition, December 2023) says in Section 6D.01 that flaggers should be trained in proper traffic control practices and public contact, and lists the abilities a flagger has to demonstrate: receive and communicate instructions, move quickly to avoid an errant vehicle, control the STOP/SLOW paddle, apply traffic control practices under stress, and recognize dangerous situations in time to warn the crew. That is guidance. The requirement for a specific course and a card comes from each state's statute or DOT specification, and from project owners.

The ATSSA flagger course is a minimum 4-hour class (about 3.5 hours of instruction plus a hands-on paddle demonstration and a written exam, passing score 70% under ATSSA's model specification), taught by an ATSSA-certified flagger instructor. The card carries an 11-character serial number that anyone can check on ATSSA's Flagger Verification Search, and ATSSA's model language sets recertification at 4 years. Some states issue a state-specific ATSSA card (North Carolina, Massachusetts, California, Colorado, Maryland, Georgia through the NSC chapter) that adds the state's own rules to the national course.

The NSC Work Zone Flagger course is the other national program, also 4 hours, and is named alongside ATSSA in Georgia, Arizona, Tennessee, Connecticut, Rhode Island, New York and others.

State courses exist where the DOT wants its own content: Florida's Temporary Traffic Control (MOT) program, NCDOT's approved flagger course, Oregon's certified flagger card administered by Chemeketa Community College, Washington's flagger card (Evergreen Safety Council is the largest provider), MnDOT's train-the-trainer program, the South Dakota DOT online course, and the Wyoming Flaggers Traffic Control Certification.

What the card gets you. A flagger card is a prerequisite, not a job. Employers still need you to show up on time, stand a full shift in the weather, communicate clearly and follow the traffic control plan. Many sites also want an OSHA 10 card for everyone on the job; OSHA 10 explained covers that. If you are new to construction work, our guide to flagger staffing for road and utility work shows what contractors expect from a flagger on day one.

Flagger certification requirements by state

How to read the table. Required? is whether the state DOT requires a training card or certificate for flaggers on state highway projects. Accepted training is what the state names; "ATSSA or NSC" means the national cards work. Card life is the renewal cycle where the state states one. Reciprocity / notes covers whether another state's card is accepted and any traps. Sources are the state spec or policy we read; the section number is given so you can find it.

Rules checked on September 30, 2026. The table is split by region; find your state, then confirm with the state DOT or the project owner before a job.

Northeast

Midwest

South and Washington, DC

West

Download the full table (CSV)

A note on the ATSSA state list. ATSSA publishes its own state-by-state summary, and it is a useful starting point, but on the day we checked it said "certification is not required" for several states whose current DOT spec does require a training card (Pennsylvania, Wisconsin, Missouri, North Dakota, South Carolina, California). Where the two disagree, the DOT spec governs, and that is what the table uses.

Reciprocity: where one card works in more than one state

The Pacific Northwest block. Washington, Oregon, Idaho and Montana accept each other's DOT flagger cards; Idaho also accepts Utah's. This is written into WAC 296-155-305, ODOT's 2024 specifications, the ITD memorandum of January 2024 and the MDT Flagger Handbook. If you live near a state line in this region, one card covers you across it.

The national ATSSA card is accepted as-is in Arizona, Georgia, Tennessee, New York, Connecticut, Delaware, DC, Illinois, Maryland, Mississippi, New Mexico, Rhode Island (in person), Virginia, West Virginia, Alaska, Colorado (2-year cap), Idaho, Montana and Wyoming, and it satisfies the "trained flagger" rule in the states that do not name a program.

State-specific ATSSA cards cross some lines: Virginia accepts the NC, MA, CA and CO versions; Maryland accepts ATSSA training from other states; North Carolina converts a Virginia or South Carolina certification into a one-year temporary NC card; South Carolina accepts training by its approved providers' out-of-state affiliates.

No reciprocity: Minnesota and South Dakota accept only their own certification, Florida and North Carolina accept only their own courses, and Caltrans accepts only its authorized providers. Plan to take the local course before you look for work there.

If you are new to flagging: what to do this week

Pick the state you will actually work in. Use the table above. If it is Florida, book an FDOT-approved Flagger (Basic MOT) class; if it is Georgia, Texas, Arizona, Tennessee, Illinois or the Northeast, an in-person ATSSA or NSC flagger class; if it is Oregon or Washington, the state flagger card class.

Bring what the class requires. A government photo ID (Delaware and Illinois require you to carry it on the job too), proof that you are 18, and comfortable clothes for the outdoor paddle demonstration. Most classes run 4 hours; Washington's runs 8; Wisconsin adds 8 hours of field time.

Budget for it. Where prices are published they run from free (South Dakota's online course, Iowa's materials, Nebraska LTAP) to about $10–$75 for state or safety-council classes (North Dakota $10, Wyoming $40, Montana LTAP $60, Tennessee TTAP $75) and $150–$260 for private or university-run classes in some states (University of Florida T2 lists $165–$214 for the FDOT flagger course; Associated Pennsylvania Constructors $176–$259 for the PennDOT flagger course). Ask whether an employer will reimburse; many contractors and staffing agencies do for workers who commit to shifts.

Add an OSHA 10 card if you can. It is not a flagging certification, but it is the most common extra requirement on construction sites, and it makes you eligible for laborer shifts on days when no flagging is available. See OSHA 10 explained.

Keep your card on you and photograph it. Almost every state in the table requires the card on your person while flagging, and dispatchers will ask for a photo of it before your first shift. Note the expiration date in your phone; a lapsed card in Florida means the full course again, not a refresher.

Then apply with us and tell us which state's card you hold and its expiration date. See the flagger role page for pay ranges and what a typical shift looks like, and how to get hired fast through a staffing agency for the paperwork that speeds up your first shift.

Working other shifts between flagging jobs? Our food handler card guide and alcohol server certification guide cover the cards for restaurant, bar and event work.

For contractors and utilities: ordering certified flaggers

Three practical rules follow from the table. First, order by state, not by "certified." A flagger with a Georgia NSC card is not certified for FDOT work an hour south; tell the agency the state and the owner (state DOT, county, utility, private) so the right cards show up. Second, ask for the expiration date, not just the card. Cycles run 2 to 4 years and several states have no grace period. Third, carry the roster. Kansas, Pennsylvania, New York, Texas and Wyoming let the contractor keep a list of trained flaggers on site; the Engineer will ask for it.

Crew Staffing Pros places flaggers as W-2 employees with workers' comp, verifies the state certification and expiration date before dispatch, and keeps the copy on file for your project records. See construction staffing, how to order flaggers who show up ready, or request a crew.

Quick answers

Do I need a certification to be a flagger?

In most states, yes for work on state highways, and most cities, counties and utilities require the same card. Forty states plus DC require a training card, certificate or written verification on state DOT work; the rest require documented training or leave it to the contractor. See the table for your state.

How long does flagger certification last?

Two to four years depending on the state: 2 years in Colorado, Massachusetts, Wisconsin, Vermont, Rhode Island, Nebraska, South Dakota and Kentucky; 3 years in Idaho, Kansas, Montana, Oregon, Pennsylvania, Utah, Washington and Wyoming; 4 years in Arizona, Florida, Maryland, Mississippi, Missouri, New Hampshire, New Mexico, North Carolina, Virginia and under ATSSA's national program.

Is ATSSA flagger certification valid in every state?

No. It is accepted directly in about 20 states and satisfies the training rule in most others, but Florida, North Carolina, Minnesota and South Dakota require their own courses, Caltrans requires its authorized providers, Oregon and Washington require their state cards, and Colorado caps ATSSA cards at 2 years.

Can I take the flagger course online?

Only in some states. Virginia, Delaware, Tennessee and New York accept ATSSA's online course; North Dakota, South Dakota, Nebraska and Wyoming run or accept online courses with their own exam. Florida, Georgia, Texas, Nevada, Illinois, California, Idaho, Montana, Mississippi, Minnesota, Oregon, Washington and Rhode Island require in-person training.

How much does flagger certification cost?

From free to about $260. State and safety-council courses are typically $10–$75; private ATSSA classes run roughly $75–$260 depending on the state and provider. Employers often reimburse the fee for workers who commit to shifts.

How old do you have to be to flag?

Eighteen. Colorado, Massachusetts, Nevada, South Dakota, Oregon, Washington and Utah write it into the rule, and every training provider we checked requires it.

This guide is general information for workers and contractors, not legal advice. Requirements were checked against state DOT specifications, statutes and training pages on September 30, 2026; states revise their spec books, so confirm with the state DOT or project owner before a job. Where a state does not publish a card term, follow the issuing program's expiration date.