811 notice clocks: a number of days is not permission to dig
Research checked November 6, 2026 (Pacific Time). Reference information, not legal advice, operational clearance or promised stock.
Do not calculate an excavation start from a search snippet or assume every state uses the same clock. Calendar days, full business days, working days, holidays and the time a notice is received are not interchangeable.
Record the whole rule
- Identify the jurisdiction and correct official source/edition.
- Record the minimum and maximum notice window, clock start and excluded days.
- Confirm required positive responses, marks, ticket validity and conditions for work to begin.
- Identify covered work, exemptions and special projects rather than assuming one wait applies to everything.
Maryland’s reviewed section uses three business days, not an assumed two. North Dakota’s reviewed text uses the later of a defined locate period or the requested time. Louisiana’s reviewed 2026 legislative digest changes some earlier provisions and adds distinct BEAD-project coordination; a legislative digest is not the complete enrolled act.
These examples do not authorize excavation. Follow current state requirements and the actual ticket/response process. See state references and known gaps.
General information only, not legal, safety-certification or insurance advice. Always follow the manufacturer's instructions and the rental yard's terms.