In some states to perform Horizontal Directional Drilling (HDD) operations for the purpose of installing an “encasement” or “product pipe” and or “conduit” underground for the proposed use of gas, water, electrical, telecommunications, sewer and irrigation, you are required to have either a horizontal directional drilling contractor license, directional boring license or pipeline contractor’s license.

The Horizontal Directional Drilling (Boring) Contractor

The Horizontal Directional Drilling Contractor’s principal business is in connection with fixed works requiring specialized directional boring knowledge and skill.

The Pipeline Contractor

A pipeline contractor fabricates and installs pipelines for the conveyance of fluids, such as water, gas, or petroleum, or for the containment or protection of any other material, including the application of protective coatings or systems and the trenching, boring, shoring, backfilling, compacting, paving and surfacing necessary to complete the installation of such pipelines

About The Horizontal Directional Drilling (HDD) License

A horizontal directional drilling contractor is a specialized contractor whose principal directional boring contracting business is in connection with fixed works requiring specialized horizontal directional drilling knowledge and skill, including the following divisions or subjects: irrigation, drainage, water power, water supply, flood control, inland water ways, harbors, docks and wharves, shipyards and ports, dams and hydroelectric projects, levees, river control and reclamation works, railroads, highways, streets and roads, tunnels, airports and airways, sewers and sewage disposal plants and systems, waste reduction plants, bridges, overpasses, underpasses and other similar works, pipelines and other systems for the transmission of petroleum and other liquids or gaseous substances, parks, playgrounds and other recreational works, refineries, chemical plants and similar industrial plants requiring specialized engineering knowledge and skill, powerhouses, power plants and other utilities plants and installations, mines and metallurgical plants, land leveling and earthmoving projects, excavating, grading, trenching, paving and surfacing work, and cement and concrete works in connection with the above mentioned fixed works.