Final answer:
GN 00203.015C.e refers to Social Security Administration procedures for cases where an applicant does not know their SSN, which involves identity verification and possibly retrieving or establishing a new SSN.
Step-by-step explanation:
The GN 00203.015C.e appears to refer to procedural guidelines presumably set by the Social Security Administration (SSA) relating to cases in which an applicant does not have their Social Security Number (SSN).
When the applicant does not know the SSN, certain established procedures must be followed to either retrieve, verify, or apply for a number.
Although no specific procedures are provided in the question, typically, such procedures involve verifying the identity of the individual through other means of documentation and possibly filling out forms to retrieve or establish a new SSN record.