There is more information at scouting.org/online registration
The council decides if they want to accept adult applications. For now, my council is only taking youth, but the council next to us is taking both youth and adult.
This may be useful for the many new cub apps in the fall, but will be almost useless for our troop due to the limited capability. --can only register new scouts, cannot use for cubs transferring at crossover, cannot change adult positions, cannot register mb counselors. My council is also only accepting credit card payment directly from the family, so we would have to ask for our unit dues separately.