DNV provides ship classification and technical advice for the maritime industry. Its maritime page describes rules, technical assessment and work on vessel safety and performance.

The International Maritime Organization is the United Nations body through which states develop international shipping safety, security and environmental requirements. The rules that apply to a tug depend on its flag, operating waters and vessel type.

The American Bureau of Shipping provides vessel classification and related technical services. Its About page describes work on safety, vessel performance and environmental matters.

Lloyd’s Register provides classification, compliance and advisory services across the life of marine assets. Its About page distinguishes the commercial group, Lloyd’s Register Foundation and related services.

Bureau Veritas Marine & Offshore reviews ship and offshore designs, construction and operation and develops class rules and guidance. This is the marine service role within Bureau Veritas, not a separate manufacturer.

Read the source for scope and details.

Read the source for scope and details.

Read the source for scope and details.

Read the source for scope and details.

Read the source for scope and details.

Read the source for scope and details.

Read the source for scope and details.