Article 2 - Regional Notification Center System

California Government Code — §§ 4216-4216.24

Sections (17)

Amended by Stats. 2024, Ch. 447, Sec. 1. (SB 778) Effective January 1, 2025.

As used in this article, the following definitions apply:

(a)“Active subsurface installation” means a subsurface installation currently in use or currently carrying service.
(b)“Board” means the California Underground Facilities Safe Excavation Board, also known as the “Dig Safe Board.”
(c)“Area of continual excavation” means a location where excavation is part of the normal business activities of agricultural operations and flood control facilities.
(d)“Delineate” means to mark in white the location or path of the proposed excavation using the guidelines in Appendix B of the “Guidelines for

Excavation Delineation” published in the most recent version of the Best Practices guide of the Common Ground Alliance. If there is a conflict between the marking practices in those guidelines and other provisions of this article, this article shall control. “Delineation” also includes physical identification of the area to be excavated using alternative marking methods, including, but not limited to, flags, stakes, whiskers, or a combination of these methods, if an excavator makes a determination that standard delineation may be misleading to those persons using affected streets and highways, or be misinterpreted as a traffic or pedestrian control, and the excavator has contacted the regional notification center to advise the operators that the excavator will physically identify the area to be excavated using alternative marking methods.

(e)“Electronic positive response” means an electronic response from an operator to the regional

notification center providing the status of an operator’s obligations under subparagraph (A) of paragraph (1) of subdivision (a) of Section 4216.3.

(f)(1) “Emergency” means a sudden, unexpected occurrence, involving a clear and imminent danger, demanding immediate action to prevent or mitigate loss of, or damage to, life, health, property, or essential public services.
(2)“Unexpected occurrence” includes, but is not limited to, a fire, flood, earthquake or other soil or geologic movement, riot, accident, damage to a subsurface installation requiring immediate repair, or sabotage.
(g)“Excavation” means any operation in which earth, rock, or other material in the ground is moved, removed, or otherwise displaced by means of tools, equipment, or explosives in any of the following ways: grading,

trenching, digging, ditching, drilling, augering, tunneling, scraping, cable or pipe plowing and driving, or any other way.

(h)Except as provided in Section 4216.8, “excavator” means any person, firm, contractor or subcontractor, owner, operator, utility, association, corporation, partnership, business trust, public agency, or other entity that, with their own employees or equipment, performs any excavation.
(i)“Hand tool” means a piece of equipment used for excavating that uses human power and is not powered by any motor, engine, hydraulic, or pneumatic device.
(j)“High priority subsurface installation” means high-pressure natural gas pipelines with normal operating pressures greater than 415kPA gauge (60psig), petroleum pipelines, pressurized sewage pipelines, high-voltage electric supply lines, conductors, or

cables that have a potential to ground of greater than or equal to 60kv, or hazardous materials pipelines that are potentially hazardous to workers or the public if damaged.

(k)“Inactive subsurface installation” means either of the following:
(1)The portion of an underground subsurface installation that is not active but is still connected to the subsurface installation, or to any other subsurface installation, that is active or still carries service.
(2)A new underground subsurface installation that has not been connected to any portion of an existing subsurface installation.
(l)“Legal excavation start date and time” means two working days, not including the date of notification, unless the excavator specifies a later date and time, which shall not

be more than 14 calendar days from the date of notification. For excavation in an area of continual excavation, “legal excavation start date and time” means two working days, not including the date of notification, unless the excavator specifies a later date and time, which shall not be more than six months from the date of notification.

(m)“Local agency” means a city, county, city and county, school district, or special district.
(n)(1) “Locate and field mark” means to indicate the existence of any owned or maintained subsurface installations by using the guidelines in Appendix B of the “Guidelines for Operator Facility Field Delineation” published in the most recent version of the Best Practices guide of the Common Ground Alliance and in conformance with the uniform color code of the American Public Works Association. If there is a conflict between the

marking practices in the guidelines and this article, this article shall control.

(2)“Locate and field mark” does not require an indication of the depth.
(o)“Operator” means any person, corporation, partnership, business trust, public agency, or other entity that owns, operates, or maintains a subsurface installation. For purposes of Section 4216.1, an “operator” does not include an owner of real property where subsurface installations are exclusively located if they are used exclusively to furnish services on that property and the subsurface facilities are under the operation and control of that owner.
(p)“Qualified person” means a person who completes a training program in accordance with the requirements of Section 1509 of Title 8 of the California Code of Regulations Injury and Illness Prevention Program, that

meets the minimum locators training guidelines and practices published in the most recent version of the Best Practices guide of the Common Ground Alliance.

(q)“Regional notification center” means a nonprofit association or other organization of operators of subsurface installations that provides advance warning of excavations or other work close to existing subsurface installations, for the purpose of protecting those installations from damage, removal, relocation, or repair.
(r)“State agency” means every state agency, department, division, bureau, board, or commission.
(s)“Subsurface installation” means any underground pipeline, conduit, duct, wire, or other structure, except nonpressurized sewerlines, nonpressurized storm drains, or other nonpressurized drain lines.
(t)“Ticket” means an excavation location request issued a number by the regional notification center.
(u)“Tolerance zone” means 24 inches on each side of the field marking placed by the operator in one of the following ways:
(1)Twenty-four inches from each side of a single marking, assumed to be the centerline of the subsurface installation.
(2)Twenty-four inches plus one-half the specified size on each side of a single marking with the size of installation specified.
(3)Twenty-four inches from each outside marking that graphically shows the width of the outside surface of the subsurface installation on a horizontal plane.
(v)“Working day” for the purposes of determining legal excavation start date and time means a weekday Monday through Friday, from 7:00 a.m. to 5:00 p.m., except for federal holidays and state holidays, as defined in Section 19853, or as otherwise posted on the internet website of the regional notification center.

Amended by Stats. 2025, Ch. 119, Sec. 2. (SB 254) Effective September 19, 2025.

(a)Every operator of a subsurface installation, except the Department of Transportation, shall become a member of, participate in, and share in the costs of, a regional notification center. Operators of subsurface installations who are members of, participate in, and share in, the costs of a regional notification center, including, but not limited to, the Underground Service Alert—Northern California or the Underground Service Alert—Southern California are in compliance with this section and Section 4216.9. A regional notification center shall not charge a fee to a person for notifying the regional notification center to obtain a ticket or to renew a ticket.
(b)(1) A regional notification center shall facilitate the exchange of planning and design information for infrastructure projects, including, but not limited to, electrical infrastructure undergrounding projects, and every operator, except the Department of Transportation, shall participate in this information exchange. The board shall determine through regulation the appropriate timelines and standard processes associated with this information exchange, the information required to be shared, and the format in which it shall be shared, and any requirements that excavators and operators are required to fulfill to accomplish this information exchange.
(2)To facilitate the expedient and efficient implementation of electrical infrastructure undergrounding

projects, the board shall determine through regulation whether and under what circumstances an excavator is required to notify the regional notification center more than two working days before the legal excavation start date and time, if the excavator is submitting a volume of concurrent notifications in excess of the capacity of the operators in the area to complete their responsibilities under paragraph (1) of subdivision (a) of Section 4216.3 within the minimum legal excavation start date and time. The board shall not implement regulations that would do either of the following:

(A)Restrict the ability of the excavator to submit a notification pursuant to subdivision (b) of Section 4216.2.
(B)Restrict the ability of the excavator to submit notifications for emergency excavations.
(3)On or before July 1, 2027, the board shall adopt regulations implementing paragraphs (1) and (2).
(4)Before implementing procedures to implement this subdivision, a regional notification center shall submit its proposed procedures to the board for review and approval, including before implementing any substantive changes to these procedures. The board shall engage with affected stakeholder groups and allow for public comment before approving the procedures.
(5)For purposes of this subdivision, “electrical infrastructure undergrounding project” includes, but is not limited to, undergrounding projects in an electrical corporation’s or local publicly owned electric utility’s distribution undergrounding and wildfire mitigation plans submitted pursuant to Sections 8386, 8387, and 8388.5 of the Public Utilities Code.
(c)Upon request by a federally recognized or nonfederally recognized California Native American tribe, a regional notification center shall notify the tribe of proposed excavations pursuant to subdivision (b) of this section and pursuant to subdivision (b) of Section 4216.2 within the geographic area with which the tribe is traditionally and culturally affiliated.
(d)The board shall report to the Legislature, as part of the report filed pursuant to Section 4216.23, on the advantages, barriers, and funding options for the development of an internet web-based planning and design platform for accomplishing the communication processes identified in subdivision (b) and for allowing tribes to view plans for projects and to communicate with plan submitters.

Amended by Stats. 2024, Ch. 447, Sec. 2. (SB 778) Effective January 1, 2025.

(a)Before notifying the appropriate regional notification center, an excavator planning to conduct an excavation shall delineate the area to be excavated. If the area is not delineated, an operator may, at the operator’s discretion, choose not to locate and field mark until the area to be excavated has been delineated.
(b)Except in an emergency, an excavator planning to conduct an excavation shall notify the appropriate regional notification center of the excavator’s intent to excavate at least two working days, and not more than 14 calendar days, before beginning that excavation. The date of the notification shall not count as part of the two-working-day notice. If an excavator gives less notice than the legal excavation start date and time and the excavation is

not an emergency, the regional notification center will take the information and provide a ticket, but an operator has until the legal excavation start date and time to fulfill their obligations under subparagraph (A) of paragraph (1) of subdivision (a) of Section 4216.3. However, an excavator and an operator may mutually agree to a different notice and start date. The contact information for operators notified shall be available to the excavator.

(c)When the excavation is proposed within 10 feet of a high priority subsurface installation, the operator of the high priority subsurface installation shall notify the excavator of the existence of the high priority subsurface installation to set up an onsite meeting prior to the legal excavation start date and time or at a mutually agreed upon time to determine actions or activities required to verify the location and prevent damage to the high priority subsurface installation. As part of the

meeting, the excavator shall discuss with the operator the method and tools that will be used during the excavation and the information the operator will provide to assist in verifying the location of the subsurface installation. The excavator shall not begin excavating until after the completion of the onsite meeting.

(d)Except in an emergency, every excavator covered by Section 4216.8 planning to conduct an excavation on private property that does not require an excavation permit may contact the appropriate regional notification center if the private property is known, or reasonably should be known, to contain a subsurface installation other than the underground facility owned or operated by the excavator. Before notifying the appropriate regional notification center, an excavator shall delineate the area to be excavated. Any temporary marking placed at the planned excavation location shall be clearly seen, functional, and considerate to

surface aesthetics and the local community. An excavator shall check if any local ordinances apply to the placement of temporary markings.

(e)The regional notification center shall provide a ticket to the person who contacts the center pursuant to this section and shall notify any member, if known, who has a subsurface installation in the area of the proposed excavation. A ticket shall be valid for 28 days from the date of issuance. If work continues beyond 28 days, the excavator shall renew the ticket either by accessing the center’s internet website or by calling “811” by the end of the 28th day.
(f)A record of all notifications by an excavator or operator to the regional notification center shall be maintained for a period of not less than three years. The record shall be available for inspection by the excavator and any member, or their representative, during normal working

hours and according to guidelines for inspection as may be established by the regional notification centers. A regional notification center shall provide notification records to the board quarterly and shall provide notifications of damage to the board within five business days of receipt at the regional notification center.

(g)(1) Unless an emergency exists, an excavator shall not begin excavation until all operators of subsurface installations that are listed on the ticket have fulfilled their obligations under subparagraph (A) of paragraph (1) of subdivision (a) of Section 4216.3 and until the completion of any onsite meeting, if required by subdivision (c).
(2)The excavator may begin excavation before the legal excavation start date and time if all of the conditions in paragraph (1) have been satisfied.
(h)If a site requires special access, an excavator shall request an operator to contact the excavator regarding that special access or give special instructions on the location request.
(i)If a ticket obtained by an excavator expires but work is ongoing, the excavator shall immediately cease excavation, contact the regional notification center, and get a new ticket pursuant to subdivision (b), and may not resume excavation until the conditions in subdivision (g) have been satisfied.

Amended by Stats. 2024, Ch. 447, Sec. 8. (SB 778) Effective January 1, 2025.

(a)In lieu of the notification and locate and field mark requirements of Sections 4216.2 and 4216.3, an excavator may contact a regional notification center to request a continual excavation ticket for an area of continual excavation. The regional notification center shall provide a ticket to the person who contacts the center pursuant to this section and shall notify any member, if known, who has a subsurface installation in the area of continual excavation. The ticket provided to the excavator shall include the contact information for notified operators.
(b)An operator shall fulfill its obligations pursuant to subdivision (a) of Section 4216.3.
(c)(1) When the area of

continual excavation includes, or is within 10 feet of, a high priority subsurface installation, the operator of the high priority subsurface installation shall notify the excavator of the existence of the high priority subsurface installation to set up an onsite meeting prior to the legal excavation start date and time or at a mutually agreed upon time to determine actions or activities required to verify the location and to prevent damage to the high priority subsurface installation during the continual excavation time period. The onsite meeting shall be used to develop a mutually agreed upon plan for excavation activities that may be conducted within 25 feet of each side of the subsurface installation. Additional onsite meetings should also be held following unexpected occurrences or prior to excavation activities that may create conflicts with subsurface installations. As part of the meeting, the excavator shall discuss with the operator the method and tools that will be used during the excavation and

the information the operator will provide to assist in verifying the location of the subsurface installation. The excavator shall not begin excavating until after the completion of the onsite meeting and information has been provided describing the activities that can be safely conducted to prevent damage to the high priority subsurface installation.

(2)When the area of continual excavation includes a subsurface installation but does not include, or is not within 10 feet of, a high priority subsurface installation, the excavator or the operator may request an onsite meeting at a mutually agreed upon time to determine actions or activities required to verify the location and to prevent damage to the subsurface installation during the continual excavation time period. The onsite meeting may be used to develop a plan for excavation activities that may be conducted within five feet of each side of the subsurface installation. The operator and

excavator may mutually agree to conduct additional onsite meetings following unexpected occurrences or prior to excavation activities that may create conflicts with subsurface installations. As part of the meeting, the excavator may discuss with the operator the method and tools that will be used during the excavation and the information the operator will provide to assist in verifying the location of the subsurface installation. If an onsite meeting is requested prior to the legal excavation start date and time, the excavator shall not begin excavating until after the completion of the onsite meeting and information has been provided describing the activities that can be safely conducted to prevent damage to the subsurface installation.

(3)The excavator and operator shall maintain records regarding the plan of excavation, any locate and field mark and standby activities, and any other information deemed necessary by the excavator and

operator. Excavation activities outside the scope of the plan shall be undertaken subsequent to notification pursuant to Section 4216.2.

(d)A ticket for an area of continual excavation shall be valid for one year from the date of issuance. The excavator may renew the ticket within two working days either by accessing the regional notification center’s internet website or by calling “811.”
(e)The board shall, in consultation with the regional notification centers, develop through regulation a process by which the renewal requirement for a continual excavation ticket may be modified or eliminated for areas of continual excavation in which no subsurface installations are present.
(f)This section shall become operative on July 1, 2020.

Added by Stats. 2017, Ch. 26, Sec. 51. (SB 92) Effective June 27, 2017.

On or before January 1, 2020, the board shall adopt regulations to establish minimum elements for the onsite meeting and minimum elements for the mutually agreed-upon plan described in paragraph (1) of subdivision (c) of Section 4616.10 for managing an area of continual excavation.

Amended by Stats. 2020, Ch. 307, Sec. 7. (SB 865) Effective January 1, 2021.

(a)The Dig Safe Board is hereby created under, and shall be assisted by the staff of, the Office of the State Fire Marshal until January 1, 2022. On and after January 1, 2022, the board shall be within the Office of Energy Infrastructure Safety within the Natural Resources Agency pursuant to Part 7.3 (commencing with Section 15470) of Division 3 of Title 2.
(b)The board shall perform the following tasks:
(1)Coordinate education and outreach activities that encourage safe excavation practices, as described in Section 4216.17.
(2)Develop standards, as described in

Section 4216.18.

(3)Investigate possible violations of this article, as described in Section 4216.19.
(4)Enforce this article to the extent authorized by subdivision (e) of Section 4216.6.
(c)Notwithstanding any other law, on and after January 1, 2020, the board shall be subject to review by the appropriate policy committees of the Legislature at least once every three years.

Amended by Stats. 2024, Ch. 447, Sec. 9. (SB 778) Effective January 1, 2025.

(a)The board shall be composed of nine members, of which seven shall be appointed by the Governor, one shall be appointed by the Speaker of the Assembly, and one shall be appointed by the Senate Committee on Rules.
(b)The seven members appointed by the Governor shall be appointed, as follows:
(1)Three members shall have knowledge and expertise in the operation of subsurface installations. Of those three members, one shall have knowledge and expertise in the operation of the subsurface installations of a municipal utility. At least one of the three members shall have knowledge and experience in the operation of high priority subsurface installations.
(2)Three members shall have knowledge and experience in contract excavation for employers who are not operators of subsurface installations. Of the three members, one member shall have knowledge and experience in general engineering contracting work and one member shall have knowledge and experience in specialty contracting work. For the purposes of this section, the terms “general engineering contracting” and “specialty contracting” shall have the meanings given in Article 4 (commencing with Section 7055) of Chapter 9 of Division 3 of the Business and Professions Code.
(3)One member shall have knowledge and expertise in performing or managing agricultural operations in the vicinity of subsurface installations.
(c)The member appointed by the Speaker of the Assembly shall have knowledge and expertise in representing in

safety matters the workers employed by contract excavators.

(d)The member appointed by the Senate Committee on Rules shall have knowledge and expertise in subsurface installation location and marking.
(e)The board may invite two directors of operations or other appropriate representatives of regional notification centers to be nonvoting ex officio members of the board.

Added by Stats. 2016, Ch. 809, Sec. 13. (SB 661) Effective January 1, 2017.

(a)The term of a member of the board is four years. Of the first members of the board, four members, determined by lot, shall serve for two years so that the terms of the members shall be staggered.
(b)A member shall not be appointed for more than two consecutive full terms.
(c)To the extent possible, the appointing power shall fill any vacancy in the membership of the board within 60 days after the vacancy occurs.
(d)Upon the recommendation of the board, the Governor may remove a member appointed by the Governor for incompetence or misconduct.
(e)The board shall select a chairperson from among its members at the first meeting of each calendar year or when a vacancy in the chair exists.
(f)Subject to subdivision (g), the manner in which the chairperson is selected and the chairperson’s term of office shall be determined by the board.
(g)A member of the board shall not serve more than two consecutive years as the chairperson of the board.

Added by Stats. 2016, Ch. 809, Sec. 14. (SB 661) Effective January 1, 2017.

The board shall meet at least once every three months. The board shall hold meetings in Sacramento and Los Angeles, and in other locations in the state it deems necessary.

Added by Stats. 2016, Ch. 809, Sec. 15. (SB 661) Effective January 1, 2017.

The board may obtain funding for its operational expenses from:

(a)A federal grant.
(b)A fee charged to members of the regional notification centers not to exceed the reasonable regulatory cost incident to enforcement of this article. The board shall apportion the fee in a manner consistent with formulas used by the regional notification centers. Revenues derived from the imposition of this fee shall be deposited in the Safe Energy Infrastructure and Excavation Fund.
(c)Any other source.
(d)The board shall not charge a fee to a

person for notifying the regional notification center to obtain a ticket or to renew a ticket.

Amended by Stats. 2020, Ch. 307, Sec. 8. (SB 865) Effective January 1, 2021.

(a)The board shall annually convene a meeting for the following purposes:
(1)To understand the existing needs for education and outreach, including to those groups with the highest awareness and education needs, including, but not limited to, homeowners.
(2)To facilitate discussion on how to coordinate existing education and outreach efforts with state and local government agencies, California operators, regional notification centers, and trade associations that fund outreach and education programs that encourage safe excavation practices.
(b)In addition to

state and local government agencies, California operators, regional notification centers, and trade associations that fund outreach and education programs that encourage safe excavation practices, the meeting pursuant to subdivision (a) shall include representatives of groups that may be the target of those outreach and education efforts.

(c)For violations that are neither egregious nor persistent, the board shall offer violators the option of completing an educational course in lieu of paying a fine. To develop the programming for the educational option, the board may contract with a third party or create the curriculum itself.
(d)Upon appropriation by the Legislature, moneys in the Safe Energy Infrastructure and Excavation Fund shall be available to the board to fund the

educational course developed pursuant to subdivision (c).

Amended by Stats. 2024, Ch. 447, Sec. 10. (SB 778) Effective January 1, 2025.

The board shall develop a standard or set of standards relevant to safety practices in excavating around subsurface installations and procedures and guidance in encouraging those practices. When possible, standards should be informed by publicly available data, including, but not limited to, that collected by state and federal agencies and by the regional notification centers. The standard or set of standards are not intended to replace other relevant standards, including the Best Practices of the Common Ground Alliance, but are to inform areas currently without established standards. The standard or set of standards shall address all of the following:

(a)Evidence necessary for excavators and operators to demonstrate compliance with Sections 4216.2, 4216.3, 4216.4, and 4216.10.
(b)What constitutes reasonable care, as required by paragraph (1) of subdivision (a) of Section 4216.4, in using hand tools around subsurface installations within the tolerance zone, considering the need to balance worker safety in trenches with the protection of subsurface installations. As part of determining reasonable care, the board shall consider the appropriate additional excavating depth an excavator should make if either of the following occur:
(1)The subsurface installation is delineated within the tolerance zone but it is not in conflict with the excavation.
(2)The location of a subsurface installation is determined, but additional subsurface installations may exist immediately below the located subsurface installation.
(c)What constitutes

reasonable care, as required by paragraph (1) of subdivision (a) of Section 4216.4, in grading activities on road shoulders and dirt roads which may include standards for potholing.

Amended by Stats. 2024, Ch. 447, Sec. 11. (SB 778) Effective January 1, 2025.

(a)The board shall investigate possible violations of this article.
(b)The board may investigate reports of occurrences of excavator downtime, damages, near misses, and complaints of violations from affected parties and members of the public.
(c)In determining whether to pursue an investigation, the board shall consider whether the parties have settled the matter and whether further enforcement is necessary as a deterrent to maintain the integrity of subsurface installations and to protect the safety of excavators and the public.
(d)If the board, upon the completion of an investigation, finds a probable violation of the article, the

board shall transmit the investigation results and any recommended penalty to the state or local agency pursuant to subdivision (c) or (d) of Section 4216.6.

(e)Sanctions shall be graduated and may include notification and information letters, direction to attend relevant education, and financial penalties. When considering the issuance of citations and assessment of penalties, the board shall consider all of the following:
(1)The type of violation and its gravity.
(2)The degree of culpability.
(3)The operator’s or excavator’s history of violations.
(4)The operator’s or excavator’s history of work conducted without violations.
(5)The efforts taken by the violator to prevent violation and, once the violation occurred, the efforts taken to mitigate the safety consequences of the violation.

Repealed (in Sec. 56) and added by Stats. 2017, Ch. 26, Sec. 57. (SB 92) Effective June 27, 2017. Section operative July 1, 2020, by its own provisions.

(a)For an investigation that the board undertakes as a result of a complaint of a violation of Section 4216.2, 4216.3, 4216.4, or 4216.10, the complainant shall not file an action in court for damages based on those violations until the investigation is complete, or for 6 months after the investigation begins, whichever comes first, during which time, applicable statutes of limitation shall be tolled.
(b)If a complainant files an action in court against a person for damages based upon violations of Section 4216.2, 4216.3, 4216.4, or 4216.10, after the completion of a board investigation in which the person was found not to have violated the article, the complainant shall also notify the board when the action is filed.
(c)This section only applies to a claim for damages to a subsurface installation.
(d)This section shall become operative on July 1, 2020.

Added by Stats. 2016, Ch. 809, Sec. 20. (SB 661) Effective January 1, 2017.

Consistent with all laws of this state, the board may prescribe rules and regulations as may be necessary or proper to carry out the purposes and intent of this act and to exercise the powers and duties conferred upon it by this act.

Added by Stats. 2016, Ch. 809, Sec. 21. (SB 661) Effective January 1, 2017.

(a)Notwithstanding Section 10231.5, the board shall report to the Governor and the Legislature on or before February 1, 2018, and each year thereafter, on the activities of the board and any recommendations of the board.
(b)A report to be submitted pursuant to subdivision (a) shall be submitted in compliance with Section 9795.

Amended by Stats. 2017, Ch. 561, Sec. 67. (AB 1516) Effective January 1, 2018.

The Safe Energy Infrastructure and Excavation Fund is hereby established in the State Treasury. Moneys deposited into the fund shall be used, upon appropriation by the Legislature, to cover the operational expenses of the board and for the purposes specified in subdivision (c) of Section 4216.17, except that revenues derived from penalties imposed pursuant to Section 4216.6 shall not be used for operational expenses.