26 Del. Admin. Code § 8002-2.0
The following words and terms, when used in this regulation, have the following meaning unless the context clearly indicates otherwise:
"Approved notification center" means Utilities Service Protection of Delmarva, Inc.
"Commission" means the Delaware Public Service Commission.
"Designer" means any architect, engineer or other person, acting either as an employer or employee, who prepares a drawing for a construction or other project which requires excavation or demolition.
"Excavator" means any person, including those acting either as an employer or employee, intending to perform or performing excavation or demolition work.
"Operator" means any person who furnishes or transports materials or services by means of a utility line.
"Regulation" means the regulations set forth herein.
"Respondent" means the operator, designer, excavator, or approved notification center who is the subject of a notice of probable violation.
"Staff" means the staff of the Commission.
"Underground pipeline facility" means a buried pipeline facility used in the transportation of gas, such as propane and natural gas, or liquid petroleum products.
"Utility line" means any item of personal property which shall be buried or placed below ground or submerged for use in connection with the storage or conveyance of water, sewage, electronic, cable television, telephonic or telegraphic communications, electric energy, oil, petroleum products, gas or other substances, and shall include, but not be limited to, pipes, sewers, conduits, cables, fiber optic conductors, valves, lines, wires, manholes, vaults, attachments and those portions of poles, pylons or other supports below ground or submerged.
"Working day" means every day, except Saturday, Sunday and state, federal and recognized operator holidays.
26 Del. Admin. Code § 8002-2.0