(a) The local registrar shall carefully examine each birth or death certificate when presented for registration to determine if it is completed as required by this title and by the state registrar's instructions.
(b) If a death certificate is incomplete or unsatisfactory, the local registrar shall call attention to the defects in the return.
(c) If a birth certificate is incomplete, the local registrar shall immediately notify the informant and require the informant to supply the missing information if it can be obtained.