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Ohio · OHIO811 · Rules rewritten June 9, 2026

Ohio's dig law changed in June. This is what your crew works under now.

House Bill 227 rewrote the underground utility protection sections of the Ohio Revised Code effective June 9, 2026. The number to call did not change. Notice windows, tolerance zone work, how large projects get scheduled, and what the response codes oblige you to do all did.

Facts on this page last reviewed August 2026 · OHIO811 at 811 or 1-800-362-2764

Effective June 9, 2026

ORC 3781.25 to 3781.38 was rewritten this summer

House Bill 227 replaced Ohio's underground utility damage prevention sections effective June 9, 2026. Calling 811 before you dig is unchanged, and OHIO811, the Ohio Utilities Protection Service, is still the notification center. What moved is the detail underneath: how far ahead you give notice, what counts as acceptable work inside the tolerance zone, how large projects get scheduled, and what a positive response actually obliges you to do next.

  • Notice is at least two working days, not counting the day you give it, and not more than 16 calendar days before you commence.
  • Tolerance zone work has a stated standard, careful and prudent and nondestructive, and a spotter is required when powered equipment approaches the zone.
  • Large jobs run as a complex project with a mutually agreed marking schedule, not as one long ticket.
  • Positive response is still required, and code 006 obliges you to give an extra full working day of notice before you actually start.

If your safety binder, your onboarding packet, or the toolbox talk your foreman gives was written before June 2026, the Ohio pages in it are worth reading again against the current chapter. The link is in the sources at the bottom.

Quick reference

Ohio dig rules at a glance

These are the working numbers under the current chapter, ORC 3781.25 to 3781.38. Where OHIO811 guidance fills a gap the statute leaves open, we say so rather than quote a number that is not in the law.

Notice window

2 working days to 16 calendar days

At least two working days before you commence, not counting the day you give notice, and not more than 16 calendar days ahead.

Ticket shelf life

Not set by statute

The statute states no explicit shelf life. OHIO811 guidance treats a ticket as expired when excavation has not commenced within 16 calendar days, so plan around the 16 as guidance rather than as a number in the law.

Large or phased jobs

Complex project

Ohio has no 180-day project ticket. Under ORC 3781.28(E) a large job runs as a complex project with a marking schedule agreed between the excavator and the facility owners.

Tolerance zone

Width plus 18 inches each side

The facility's width plus 18 inches on each side. Inside it, work has to be done in a careful, prudent, and nondestructive manner: hand tools, hydro excavation, or air vacuum.

Spotter

Required near the zone

When powered equipment approaches the tolerance zone, a spotter has to be watching it. This is the requirement Michigan crews most often do not know about.

Bores parallel to a facility

Expose every 100 feet

When you bore parallel to a facility inside the tolerance zone, that facility has to be exposed every 100 feet.

Positive response

Required before you dig

Ten codes, 001 through 009 plus 999. Confirm every affected owner has posted a response, and confirm the marks are visible on the ground, before you break ground.

High profile facility

One extra working day

A 006 response means the owner requests to be present under ORC 3781.31(A) and you owe at least one full working day of notice before commencing. It is the easiest way to lose a morning.

Emergencies

Notify as soon as possible

Notify the protection service before an emergency excavation, or as soon as possible after it begins. The statute attaches no numeric response deadline, so do not plan around one.

Homeowner exemption

Conditional

An owner digging on their own qualifying property may be exempt, but not near easements, right-of-way, or a known service, and the exemption is gone the moment a contractor is hired.

Ohio one-call: OHIO811, the Ohio Utilities Protection Service, reachable at 811 or 1-800-362-2764.

Positive response

The ten OHIO811 response codes, and which ones stop you

OHIO811 posts a code per facility owner, commonly written 1 through 9 plus 999. Three of them look like clearances and are not, and one of them quietly adds a day to your schedule.

Code What OHIO811 says it means Can you dig?
001

No conflict. That owner's facilities are not in conflict based on the information in the excavation request.

Clear for that owner
002

Marked. That owner's facilities at the site have been marked up to the privately owned facility.

Clear for that owner
003

Excavation request cancelled by the excavator.

Watch this one if you also work Michigan, where 003 means locating is not complete. Same three digits, different situation.

No live ticket
004

Locator coordination. The locate is not complete, and the locator has contacted or will contact you to coordinate markings.

Do not dig
005

Facility owner coordination. The locate is not complete, and the owner will contact you to coordinate markings.

Do not dig
006

High profile or critical facility. The owner requests to be present under ORC 3781.31(A), and you must give at least one full working day of notice before commencing.

This is the one that costs mornings. A 006 is not a stop sign, it is a schedule change, and a crew that reads it as marked shows up a day early to a facility nobody is allowed to work near yet.

Wait out the extra day
007

Complex project. Used with a complex project notification only.

Follow the agreed schedule
008

Design notification. The owner has completed a design request.

Not a dig clearance
009

Work complete. The owner considers the excavation to have been completed.

Not a dig clearance
999

No response, late. Nothing was posted before the legal start date.

Do not dig

Before work starts, confirm every affected owner has posted a response and that the marks are actually visible on the ground. A code on a screen and paint on the grass are two separate pieces of evidence, and you want both.

Inside the zone

Eighteen inches, a spotter, and what nondestructive actually means

Ohio's tolerance zone is narrower than Michigan's caution zone, which reads like good news right up until you notice what Ohio asks you to do around it.

The zone

Facility width plus 18 inches on each side

Measured out from the outer edges of the marked facility, on both sides. That band is where the special rules apply.

The standard

Careful, prudent, nondestructive

Inside the zone the work has to be done in a careful, prudent, and nondestructive manner. In practice that means hand tools, hydro excavation, or air vacuum, not a bucket.

The spotter

Watching whenever powered equipment approaches

Ohio requires a spotter observing powered equipment as it comes near the zone. That is a staffing decision rather than a paperwork one, and it belongs in the bid.

Parallel bores

Expose every 100 feet

Boring parallel to a facility inside the tolerance zone means exposing that facility every 100 feet rather than trusting the marks across the whole run.

What we tell our own operators

We expose everything and we daylight everything. No blind bores. Our crews pothole anything they cannot account for, because after enough years you learn that the one line nobody marked is the one the rod finds. Eighteen inches is a legal boundary. It is not a promise about where the pipe is.

Big jobs

Ohio has no project ticket, so you negotiate a schedule instead

This is the biggest adjustment for a contractor arriving from a state with long project tickets. In Michigan a project ticket runs 180 days and you manage a clock. In Ohio you manage an agreement.

What the statute provides

Complex project, ORC 3781.28(E)

Large or phased excavation is handled as a complex project, with a marking schedule that the excavator and the facility owners agree on together.

What that means in practice

Scheduled segment by segment

Marking gets scheduled per segment, in the order the work will actually happen, so the schedule has to reflect real production rates instead of an optimistic bid.

Where it goes wrong

Either side outruns the other

Marks age out before the crew arrives, or the crew catches the end of the marked run and stands on it. Both directions cost the same money.

How we ran ours

On our Ohio fiber build we shared job links with the locators so they could see what had already been bored, what was next, and how fast the crews were moving. Handing them the picture up front turned a difficult start into a schedule everybody could work against, which is a great deal cheaper than escalating after the fact.

From the Ohio fiber build

What 30,000 feet a week does to a ticket list

Our Ohio experience is a fiber-to-the-home build, mostly rural, which let us move. These are the parts of it that were about tickets rather than plow.

Fifty to sixty tickets open at once

At 25,000 to 30,000 feet a week the larger projects carried 50 to 60 live tickets. At that pace the office is not really managing tickets, it is making one decision every evening: does this crew have enough cleared footage for tomorrow, or do they get moved to another market.

We gave the locators the same picture we had

We shared job links with them so they could see what had already been bored, what was coming next, and how fast the crews were moving. When locators can see the plan, the conversation stops being a complaint and starts being a schedule. That matters more in Ohio than in a state with long project tickets, because in Ohio the marking schedule is negotiated in the first place.

Skipping is cheaper than waiting

When a section is not ready, or an abnormal operating condition is flagged on it, the foreman needs to know before he is standing on it. Three hundred feet you jump and come back to costs you nothing. Three hundred feet you discover at seven in the morning costs a crew day.

Escalation has an order

One or two phone calls first. Then a round of retransmits. Hold off if a locator is actually on site. If the footage that was promised does not appear, another round, and by the third round we are logging arrival times, departure times, and how many tickets got closed, so there is a documented record if it comes to that.

Two working days is not three days

Coming from Michigan, the notice math is the easiest thing to get wrong. Ohio counts working days, does not count the day you gave notice, and caps you at 16 calendar days on the front end. Michigan's 72 hours and 14 days is a different rhythm, and mixing the two up shows up as a crew standing on a job with no valid ticket.

Both sides of the line

If you also dig in Michigan

Plenty of Ohio crews take Michigan work, and plenty of Michigan crews come south. The two systems agree on the phone number and disagree on nearly every detail underneath it.

Michigan hands you a 180-day project ticket

Ohio does not. Where an Ohio complex project is a negotiated marking schedule, a Michigan project ticket is a 180-day clock you can plan an entire bore around, as long as the dig notice states the work will not finish inside 21 days. Standard Michigan tickets run 21 days.

The zone is wider up north

Michigan's caution zone is 48 inches on each side of the marks, and inside it you soft-excavate before power equipment. Ohio's tolerance zone is the facility width plus 18 inches, but Ohio adds the spotter requirement, which Michigan does not have.

Michigan puts clocks on the utility

A Michigan facility owner has three hours to respond to an emergency notice, 24 hours to restore destroyed marks, and three business hours on a request for additional assistance. The Ohio statute does not attach numbers like that.

The three digit codes do not line up

003 in Ohio means the excavator cancelled the request. 003 in Michigan means locating is not complete and nobody digs. Reading an Ohio habit onto a Michigan ticket, or the reverse, is a genuinely dangerous mistake.

Read the Michigan reference

Where Quick811 fits

A rewritten statute is a documentation problem before it is a legal one

Quick811 does not submit tickets and does not replace OHIO811. You keep filing exactly as you do today. What we built is what happens after the ticket exists, because when the rules move, what protects you is a clean record of what you were told and when you were told it.

Every response, in order, exportable

Codes, revisions, and timestamps laid out chronologically instead of dumped into a table. When a claim turns up a year later, that record is the whole argument.

The sixteen day clock, watched for you

Ohio's guidance window is short and it does not forgive. Aging tickets surface before a crew gets dispatched to one.

Photos that file themselves to the ticket

Time stamped, location stamped, and attached to the nearest dig area on their own. Before we had that, we got billed a year after the fact for a water main we could not prove we had left intact.

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Common questions

Ohio 811 after the rewrite, answered

What changed in June, how the notice math works, what the tolerance zone asks of you, and what each response code obliges you to do next.

House Bill 227 rewrote the underground utility protection sections of the Ohio Revised Code, ORC 3781.25 to 3781.38, effective June 9, 2026. Calling 811 before you dig did not change and OHIO811 is still the notification center. The detail underneath did: the notice window is stated as at least two working days and not more than 16 calendar days, tolerance zone work carries a stated careful and prudent and nondestructive standard plus a spotter requirement for powered equipment, large jobs run as complex projects with an agreed marking schedule, and positive response obligations are spelled out including the extra working day that comes with a high profile facility. If your training material predates June 2026, treat its Ohio pages as stale until you have checked them.

Sources and review

Facts on this page last reviewed August 2026

This is a contractor's working reference, not legal advice. Ohio's chapter was rewritten in June 2026 and guidance is still settling. Confirm anything you are about to bet a crew on against the sources below.

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