You can submit an application for verification when you are in HK. If you need to leave HK, just provide notarized documents requested in the mail and keep in contact with the officer over the phone so your case won't be closed due to inactivity.
An expired CI is a forever-valid evidence of ROA in HK and Chinese nationality. Your mother can enter HK as a Chinese national and a permanent resident without any restriction on her expired CI. Additionally showing a valid Canadian passport with a recent photo will, of course, help identifying her.
With a CI, which denotes ROA and Chinese nationality if born in China, your mother can apply for HKPIC and HKSAR passport without verification process.
I guess your father never registered as a BN(O) and thus lost British nationality on 7/1/97. If without a CI, your father will not be able to enter HK as a Chinese national on a BDTC passport because that British nationality doesn't necessarily mean he had ROA according to today's laws -- he will need to go through a verification process before he can apply for HKPIC and HKSAR passport.
Anyway, they don't have to apply for HKPICs if they don't need to remain in HK for more than 30 days in a row; and they don't need to apply for HKSAR passports unless they need to get HRPs for mainland.
Originally Posted by hayzen:
Yes, I was born after both my parents became Canadian.
I have been outside of HK for longer than 36 months once before so it seems I can only get RTL.
My parents are eligible for HKPIC, HKSAR passport, and Home Return Permit? Wow, thanks for the bonus info. Is it relatively easy to apply?