NAICS Codes

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In California, HVN is licensed for and can operate under numerous NAICS Codes (North American Industrial Classification System), such as

221310 Water Supply and Integrated Systems
221320 Sewage Treatment Facilities
237110 Water and Sewer Line & Related Structures Contamination
237120 Oil and Gas Pipeline and Related Structures Construction
237990 Other Heavy and Civil Engineering Construction
238910 Site Preparation Contractors
531390 Other Real Estate Services
541330 Environmental Engineering Services
541340 Drafting Services
541350 Building Inspection Services
541611 Site Selection Consulting Services
541620 Environmental Consulting Services
561210 Facilities Support Services
562910 Remediation Services
562920 Materials Receiving Facilities

 

and numerous others.