Rotorbike,
That need to be type rated in a Bell 206 before you can log PIC time is another distinction between the US and "East Atlantic" thinking.
In the US, an FAA type rating Board determines if the helicopter has strange enough characteristics to warrant requiring a separate type rating. Only if the aircraft is above 12,500 pounds GW is one absolutely established. I know of no helo below 12,500 pounds that requires a type rating.
For Private and Commercial pilots, they can move between virtually all helicopters below 12,500 pounds without a formal Type rating. Only insurance regulations require a check-out by an IP, there is no FAA compulsion to do so, and the check-out is not applied to your pilot's certificate, it is meerly logged.
The exception is those who fly PT 135 and PT 127, where their Ops Manuals always require a type check, and thus a type rating.