Section 12-122 - One-call system registration and certification requirements; owner-contractor information exchange system(a) Except as provided in subsection (b) of this section, a person that operates a one-call system in the State shall register with and obtain certification to operate from the Commission.(b) A person operating a one-call system on or before July 1, 1990, is automatically registered with and certified by the Commission to continue to operate.(c)(1) The operator of a one-call system shall install and make available an underground facilities information exchange system in its one-call system in the State.(2) The underground facilities information exchange system shall be available to any caller at all times.(d) The Commission may grant, amend, or revoke the certification of a person operating a one-call system.Amended by 2022 Md. Laws, Ch. 135, Sec. 1, eff. 4/12/2022.