| Type of PFD | General Description |
| Type I | Off-shore life jacket - effective for all waters or where rescue may be delayed. |
| Type II | Near-shore buoyant vest - intended for calm, inland water or where there is a good chance of quick rescue. |
| Type III | Flotation aid - good for calm, inland water, or where there is a good chance of rescue. |
| Type V | Flotation aids such as boardsailing vests, deck suits, work vests and inflatable PFDs marked for commercial use. |
| Note: | • Commercially available PFDs are marked or imprinted with the Type of PFD. |
| • Type IV PFDs are throwable devices. They are used to aid persons who have fallen into the water. | |
| • The requirements for USCG approval are in 46 CFR Part 160, Coast Guard Lifesaving Equipment Specifications. |