DEFINITIONS.

In this chapter:

(1) "Construction" includes:

(A) the initial construction of an improvement to real property;

(B) the construction of an addition to an improvement to real property; or

(C) the repair, alteration, or remodeling of an improvement to real property.

(2) "Contractor" means a person engaged in the business of developing, constructing, fabricating, repairing, altering, or remodeling improvements to real property.

(3) "Critical infrastructure facility" includes:

(A) a petroleum or alumina refinery;

(B) an electrical power generating facility, substation, switching station, or control center;

(C) a chemical, polymer, or rubber manufacturing facility;

(D) a water intake structure, water treatment facility, wastewater treatment plant, or pump station;

(E) a natural gas compressor station;

(F) a liquid natural gas terminal or storage facility;

(G) a telecommunications central switching office or any structure used as part of a system to provide wired or wireless telecommunications services;

(H) a port, railroad switching yard, trucking terminal, or other freight transportation facility;

(I) a gas processing plant, including a plant used in the processing, treatment, or fractionation of natural gas;

(J) a transmission facility used by a federally licensed radio or television station;

(K) a steelmaking facility that uses an electric arc furnace to make steel;

(L) a dam that is classified as a high hazard by the Texas Commission on Environmental Quality;

(M) a concentrated animal feeding operation, as defined by Section 26.048, Water Code;

(N) any portion of an aboveground oil, gas, or chemical pipeline;

(O) an oil or gas drilling site;

(P) a group of tanks used to store crude oil, such as a tank battery;

(Q) an oil, gas, or chemical production facility;

(R) an oil or gas wellhead;

(S) any oil and gas facility that has an active flare;

(T) pipelines and pipeline appurtenances or facilities, including pipes, valves, meters, pumps, compressors, treating and processing facilities, cathodic protection facilities, and any other equipment, facilities, devices, structures, and buildings used or intended for use in the gathering, transportation, treating, storage, or processing of CO2, oil, gas, or other minerals, and the liquefied or gaseous substances, constituents, products, or mixtures derived from those minerals through refining, processing, or other methods;

(U) utility-scale equipment or facilities to transmit or distribute electricity;

(V) utility-scale water or wastewater storage, treatment, or transmission facilities;

(W) facilities used to manufacture or produce transportation fuels and similar products, including gasoline, kerosene, distillate fuel oils, residual fuel oils, lubricants, asphalt, propane, ethanol, biodiesel, and renewable diesel; and

(X) commercial airport facilities used for the landing, parking, refueling, shelter, or takeoff of aircraft, maintenance or servicing of aircraft, aircraft equipment storage, or navigation of aircraft.

(4) "Design" means work that is required under Title 6, Occupations Code, to be performed by or under the supervision of a person licensed or registered under the statute.

(5) "Design-build contract" means a contract in which a contractor agrees to:

(A) construct, repair, alter, or remodel an improvement to real property; and

(B) be responsible for the development of plans, specifications, or other design documents used by the contractor to construct, repair, alter, or remodel the improvement.

(6) "Engineering, procurement, and construction contract" means a construction contract where the contractor is responsible for all of the engineering, procurement, and construction activities to deliver the completed project.