When an infant is found for whom no known certificate of birth is on file and for whom no other identification is known, the finder shall notify the police authorities having jurisdiction within the area of finding.

The police authorities, within 48 hours, shall have the local health officer determine or cause to be determined the approximate date of birth of the child.

The health officer, within 72 hours of notification shall complete a certificate of live birth on a standard Washington certificate of live birth form designating the place of finding as the place of birth and place of residence, the approximate date of birth, sex, and assign a given name. He shall write across the face of the certificate in the sections provided for parental information the words, "foundling child," sign, and date the certificate and cause the same to be filed with the local registrar of the area in which the finding occurred.