EH101 is civil certified
Series 300 and 500 got TC from CAA, FAA and RAI in 1994, Series 510 TC in 1998.
admittedly no 300/500 were delievered however the Tokyo Police Force do operate a -510 under full civil rules.
Other variants (Cormorant, DMRH, PoAF and JMSDF) used the TC as evidence that the aircraft was airworthy insted of using a 'military' certification.
DM