Yes, you have to call 811 before you dig a single deck footing in Massachusetts, and yes, that includes you personally if you own the house. State law puts homeowners inside the same "excavator" definition it uses for contractors, and the notification duty kicks in the moment an auger touches dirt.

Most people who read the law wrong assume the "residential property owner" line in Chapter 82 §40E gets them out. It does not. That carve-out only excuses the pre-mark step. The base duty to notify Dig Safe at least 72 business hours in advance is still on you, and skipping it exposes you to a $1,000 first-offense fine from the Department of Public Utilities plus full civil liability for anything your post-hole digger hits.

Do I have to call 811 for a residential deck footing?

Yes. Massachusetts General Laws Chapter 82 §40 defines an "excavator" as "any entity including, but not limited to, a person," and defines "excavation" to include "digging, blasting, augering, backfilling, test boring, drilling, pile driving, grading" and demolition. A homeowner with a two-person auger digging four Sonotube holes for a 12x16 deck is squarely inside both definitions.

The statute does not carve out small holes. It does not carve out hand-digging with a shovel. It does not carve out "just the backyard." Any movement of earth, rock, or ground material to make a footing is excavation under the law, and any person doing that excavation is an excavator.

What Massachusetts law actually requires

You must give Dig Safe at least 72 hours of notice, excluding Saturdays, Sundays, and legal holidays, and not more than 30 days before you plan to dig. That is straight out of §40A.

Practically that means:

• File your notice online at Dig Safe or by phone at 811.
• Pre-mark the footprint of your dig with white paint or white stakes so the locators know exactly where to look.
• Wait for every utility that has infrastructure in the area to come out and mark it with the standard color codes (red for electric, yellow for gas or oil, orange for communications, blue for potable water, green for sewer, purple for reclaimed water).
• Start the dig within 30 days of the ticket date. Once the ticket expires, you refile.

The service is free. Dig Safe is funded by its utility members, not by the excavator, so there is no cost line item for the homeowner beyond the time it takes to submit the ticket.

The residential carve-out is smaller than it sounds

The residential property owner language in §40E only says a homeowner cannot be forced to forfeit a penalty for failing to pre-mark on their own property. That is a pre-mark exemption, not a notification exemption.

Read the statute carefully. The exact carve-out reads, in effect, that nothing in the section shall be construed to require the forfeiture of any penal sum by a residential property owner for the failure to pre-mark for an excavation on their residential property. It says nothing about failure to notify. It says nothing about damage caused by an unnotified dig. If you never call 811 and put an auger blade through a natural gas service line to your basement, you own that damage.

What it costs if you skip the call

The DPU sets the ceiling. Chapter 82 §40E establishes a $1,000 fine for a first offense and a range of $5,000 to $10,000 for any subsequent offense within a rolling 12-month window. In lieu of a first-offense fine, the DPU may require the person to complete a Dig Safe training program.

That is only the enforcement fine. It sits on top of your civil liability for the utility repair, service outage, emergency response, and any injury caused by the strike.

Situation	Statutory penalty (DPU)	Also on the hook for
First no-notice offense in a 12-month window	$1,000 (or Dig Safe training)	Full cost of any damaged line
Any subsequent offense in the same 12 months	$5,000–$10,000 per offense	Emergency response, outage costs, injury claims
Failure to pre-mark, homeowner on own property	No forfeiture per §40E	Still liable if a strike happens
Failure to pre-mark, contractor	Subject to §40E fines	Utility repair and consequential damages
Digging with a machine within a marked utility's protection zone	Subject to §40E fines	Repair, outage costs, gas leak response

The gas one is the one to internalize. A struck gas service line under a Massachusetts front yard can pull three fire trucks, a National Grid or Eversource crew, and a police detail before you have finished digging your second hole. The homeowner absorbs the invoice.

Fitting the 72-hour clock into a real deck build

Plan the ticket into your build schedule, not around it. A residential deck permit already runs on a slow calendar in most MA towns; the Dig Safe window is faster than the building inspector, but the two need to be sequenced.

Day	Task
T minus 10 to 14	Deck plan finalized, building permit filed with the local building department
T minus 5	Pre-mark the footing footprint in white paint or white stakes
T minus 4 (business days)	File the Dig Safe ticket online or by phone at 811
T minus 1	Walk the site: are all six utility colors marked? If not, contact the operator listed
Day 0	Dig footings; hand-dig near any marked line per state rules
T plus 1 to 30	Ticket is valid; if the job runs past 30 days, file a new ticket before restarting

The 72-hour clock is business hours. A ticket filed Wednesday at 3 pm is not diggable until the following Monday at 3 pm, and a Thanksgiving-week ticket burns extra days for the holiday. Plan accordingly if you are trying to pour concrete before frost.

Speaking of frost, the depth requirement is a separate rule. See the MA deck footing frost depth rules for how deep the hole itself has to go. Dig Safe handles what is in your way; the state building code handles how far below grade the bottom of the footing must sit.

What the utility does after your call

Every utility that owns underground facilities in the marked area has 72 business hours to send a locator out and paint the ground with color-coded markings. Per Chapter 82 §40B, the marks must show the location of the buried facility within 15 feet in any direction of your pre-mark. That 15-foot tolerance is why the pre-mark matters: a sloppy or missing white line makes locators mark a wider zone, and a wider marked zone means more of your dig site becomes a slow, careful hand-dig area.

If a utility never shows up, do not just start digging. Call Dig Safe back, report the non-response, and get the ticket amended. The excavator is still on the hook if a line is hit, even when the marking never happened.

State rules require non-mechanical means (hand-digging with a shovel, or a soft-dig vacuum truck) when working close to a marked facility. Homeowners routinely violate this by muscling through with an auger "just to save an hour." A struck 1-inch plastic gas service to the house is a $3,000 to $10,000 utility repair minimum, plus the DPU fine.

Contractor's Dig Safe duty vs. yours

If a licensed home improvement contractor is building the deck, the Dig Safe call is legally the contractor's job, because the contractor is the "excavator" performing the work. Verify they actually filed a ticket before they arrive with the auger. A dig-first, ticket-later contractor is a red flag; if they hit a line, the DPU will fine the excavator on the ticket (them), but the utility repair invoice can pull the homeowner in through the general liability chain.

Ask before hiring:

• Do you file the Dig Safe ticket for this job? (Correct answer: yes.)
• What day are you filing it, and can you send me the ticket number?
• Are you insured against underground utility strikes specifically? (Some contractor policies exclude this.)

For how to verify the license side, see the MA deck contractor license check. And if you are choosing between a ledger-attached and a freestanding deck, remember: freestanding designs need more footings, which means more holes, which means more chance of clipping a line if the ticket is skipped.

FAQ

Do I really have to call for a single 12-inch-diameter Sonotube hole? Yes. Massachusetts does not scale the notification requirement to hole size. Chapter 82 §40 defines any augering as excavation. One hole triggers the notice.

How long does the Dig Safe ticket last? 30 days from the date of the notice, per Chapter 82 §40A. If the deck build stretches longer, you refile a new ticket before you continue digging.

Is Dig Safe expensive? No. Dig Safe is a free service to the excavator; it is funded by utility member companies. Filing online at digsafe.com or calling 811 costs nothing.

What if I only hand-dig with a shovel and never use a machine? The notice still applies. Chapter 82 §40 defines excavation as any movement of earth, rock, or ground material. That includes a shovel. However, state rules require non-mechanical digging (a shovel or soft-dig truck) once you are within the protection zone of a marked utility, so hand-digging is exactly what you do when working near a marked line.

Who do I call if the utility never comes out to mark? Call Dig Safe back on 811 and report the non-response. Do not start digging on an incomplete ticket. If a line is later damaged, the excavator on the ticket carries the liability, not the utility that failed to mark.

Does my building permit count as Dig Safe notice? No. They are two separate systems. The town building department handles the deck permit; Dig Safe handles underground utilities. You need both, and you file them separately.

Bottom line

The Massachusetts decks and porches hub lists more of what a MA deck project actually involves (permits, snow load, frost depth, coastal fasteners, all of it). Dig Safe fits into that stack. It is a phone call or a five-minute online form, it is free, and it is the difference between a legal build and a $1,000 opener from the DPU on top of whatever the utility invoices you.

Ready to hire someone who won't skip the 811 call and won't skip the permit either? Get free estimates from vetted Massachusetts deck builders.