(1) "Critical infrastructure materials" means sand, gravel, or rock aggregate.

(2) "Critical infrastructure materials operations" means the extraction, excavation, processing, or reprocessing of critical infrastructure materials.

(3) "Critical infrastructure materials operator" means a natural person, corporation, association, partnership, receiver, trustee, executor, administrator, guardian, fiduciary, agent, or other organization or representative, either public or private, including a successor, assign, affiliate, subsidiary, and related parent company, that: (a) owns, controls, or manages a critical infrastructure materials operations; and (b) has produced commercial quantities of critical infrastructure materials from the critical infrastructure materials operations.

(a) owns, controls, or manages a critical infrastructure materials operations; and

(b) has produced commercial quantities of critical infrastructure materials from the critical infrastructure materials operations.

(4) "Vested critical infrastructure materials operations" means critical infrastructure materials operations operating in accordance with a legal nonconforming use or a permit issued by the municipality that existed or was conducted or otherwise engaged in before: (a) a political subdivision prohibits, restricts, or otherwise limits the critical infrastructure materials operations; and (b) January 1, 2019.

(a) a political subdivision prohibits, restricts, or otherwise limits the critical infrastructure materials operations; and

(b) January 1, 2019.