Hawaii One Call Center Seminars

Registration is open for the spring 2026 Hawaii One Call Center Seminars! Sponsored by the Hawaii One Call Center and Hawaii Public Utilities Commission, all excavators and utilities are encouraged attend to these informational seminars that focus on the Hawaii One Call Center Advance Warning to Excavators program and Hawaii Revised Statutes Chapter 269E. Seating is limited.

Click on a location below to register for a seminar near you. Registration closes Monday, April 27, 2026.

Seminar Schedule:

Location	Date	Time
Kona	Monday, May 4	9:30 – 11:00 a.m.
Hilo	Monday, May 4	2:00 – 3:30 p.m.
Maui	Tuesday, May 5	9:30 – 11:00 a.m.
Kauai	Wednesday, May 6	9:30 – 11:00 a.m.
Oahu	Thursday, May 7	9:00 – 10:30 a.m.

Questions? Please contact Rose Tabor with the HOCC by email at [email protected] or toll-free by phone at (877) 668-4001.

Hawaii One Call Center (HOCC) Phone Numbers

To call for a locate request dial 811 or (866) 423-7287.

For administrative questions please call (877) 668-4001.
Available from 8 am to 5 pm PST, Monday through Friday.

The Hawaii One Call Center is available 24 hours a day, seven days a week, every day of the year. Online service ticket requests are also available around the clock at www.digsafelyhawaii.com.

Observed Holidays

Above are the legal holidays defined in the Hawaii Revised Statutes to be observed by the State. Holidays that fall on Saturdays are observed on the proceeding Friday; holidays that fall on Sundays are observed on the following Monday. Election Days are established by the State Constitution.