Establishes requirements for all fuel cell power systems, units and cartridges to ensure a reasonable degree of safety for normal use, reasonably foreseeable misuse, and consumer transportation of such items. Covers fuel cell power systems, power units and fuel cartridges that are wearable or easily carried by hand, providing d.c. outputs not exceeding 60 V d.c. and power outputs not exceeding 240 VA. The contents of the corrigendum of April 2007 have been included in this copy.