Minn. Stat. § 216D.04
Subd. 1. Notice required; contents.
(b) The notice may be oral or written, and must contain the following information:
Subd. 1a. Plans for excavation.
(b) This subdivision does not apply to bids and contracts for:
Subd. 1b. On-site meet.
(b) Unless otherwise agreed to between an excavator and operator, an on-site meet is required for:
(f) The excavator and the operator must submit documentation of each on-site meet to the notification center, in the manner specified by the notification center. The documentation must include:
Subd. 2. Duties of notification center; regarding notice.
The notification center must assign an inquiry identification number to each notice and retain a record of all notices received for at least six years. The center must immediately transmit the information contained in a notice to every operator that has an underground facility in the area of the proposed excavation or boundary survey.
Subd. 3. Locating underground facility; operator.
(d) Markers used to designate the approximate horizontal location of underground facilities are subject to the following requirements:
(4) the name of the operator must be indicated on each flag, stake, or whisker.
If the surface being marked is hard, markers without flags, stakes, or whiskers may be used but must comply with the color code standard and tolerance requirement under clauses (2) and (3).
Subd. 4. Locating underground facility; excavator or land surveyor.