Npl

Npl is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Pipe Line Contractors
• Utility Contractors

North American Industry Classification System (NAICS) Categories:

• Oil And Gas Pipeline And Related Structures Construction
• Power And Communication Line And Related Structures Construction

Standard Industry Classification (SIC) Categories:

• Constructing Water, Sewer, Power, & Communication Lines And Pipelines > Utility Contractors
• Constructing Water, Sewer, Power, & Communication Lines And Pipelines > Pipe Line Contractors