In the United States this may refer to:
- Shipping Act of 1916
- The act of the U.S. Congress (1916) that created the U.S. Shipping Board to develop water transportation, operate the merchant ships owned by the government, and regulate the water carriers engaged in commerce under the flag of the United States. As of June 18, 1984, this applies only to domestic offshore ocean transport.
- Shipping Act of 1984
- Effective June 18, 1984, describes the law covering water transportation in the U.S. foreign trade.
- Shipping Act of 1998
- Amends the Act of 1984 to provide for confidential service contracts and other items.