依附父母BNO既兒童都會有無相身份證
根據1996年入境申請BN(O)網頁
http://web.archive.org/web/19970227171240/http://info.gov.hk:80/immd/bno-un16.htm
Application for BN(O) passports for children under 16 years of age
if the child is under 11 years of age, the parent or legal guardian should apply for a Hong Kong permanent identity card for the child at the same time
Documents to be produced
a passport application form duly completed and signed;
2 identical recent photographs of the child (not larger than 55 mm x 45 mm and not smaller than 50 mm x 40 mm);
a Hong Kong permanent identity card application form duly completed and signed if the child is under 11;
1 more recent photograph of the child if he/she is under 11; and
original and photostat copies of supporting documents