There is at least one USCG-endorsed Class B-1 for the fire extinguisher that is required on any powerboat unless it is with the accompanying special case:
1. speedboats under 26 feet long,
2. moved by detachable engines and
3. not conveying travelers for procuring, require not convey such compact fire dousers if
4. the development of such speedboats won't allow the entanglement of touchy or combustible gasses or vapors
