8-1-1 is a privately funded, non-profit corporation whose purpose is to prevent damage to underground facilities.PA One Call

You can dial 8-1-1 or 1-800-242-1776, 24 hours a day, any day of the year. 

You are required to notify the utilities a minimum of 3 business days prior to the start of excavation and 10 business days prior to final design.

For more information, contact PA One Call


The Underground Utility Line Protection Law
Act 287 of 1974 as amended

Facility Owners and Operators are required to be a member of PA One Call System, to identify their underground lines and to respond to all notifications through the One Call System. If a facility is damaged as a result of not being notified because the facility owner or operator was not a member of the PA One Call System, there is no right of recovery for any damage to its lines.

Designers & Engineers are required to request line information not less than 10 business days nor more than 90 business days before final design, to show the facility owner's line, and name, the 8-1-1 and/or 1-800-242-1776 phone number and the serial number on the drawing. Design work should minimize interference with existing lines. Requests should be made through the One Call System.

Excavators are required to notify facility owners not less than 3 nor more than 10 business days prior to the start of excavation or demolition work when using powered equipment on public or private property anywhere in the Commonwealth of Pennsylvania. Excavators are responsible for preserving the facility owner markings, to exercise due care and employ prudent techniques within the tolerance zone. Excavators should keep each operator at the site informed and evacuate the premises if necessary. Notification should be made through the One Call System.

The complete text is available at www.paonecall.org