①If the mayor of a municipality becomes aware of any person who has failed to submit a notification, they must specify a reasonable period and request the person who has the duty to submit a notification do so within that period.

②If the person who has the duty to submit a notification fails to do so within the period referred to in the preceding paragraph, the mayor of a municipality may further specify a reasonable period and request that the person in question submit the notification within that period.

③If it is not possible to make a request referred to in the preceding two paragraphs or if no notification is submitted after the request, the mayor of a municipality may make entries in the family register with the approval of the director with jurisdiction.

④The provisions of Article 24, paragraph (4) apply mutatis mutandis to the case in which a court or any other government agency, public prosecutor, or public official who in the course of their duties comes to know of any person who has failed to submit a notification.

If the mayor of a municipality has accepted a notification, but they are unable to make an entry in a family register due to a defect in the written notification, they must have the person who has submitted the notification add further information to complete the notification. In this case, the provisions of the preceding Article apply mutatis mutandis.

The mayor of a municipality must accept a notification even if it is made after the expiration of the period for submitting the notification.

①The mayor of a municipality must accept a written notification even after the death of the notifying person, if the notifying person sent the notification while they were still alive by postal mail or by correspondence delivery as prescribed in Article 2, paragraph (2) of the Act on Correspondence Delivery by Private Business Operators (Act No. 99 of 2002) through a general correspondence delivery operator as prescribed in paragraph (6) of that Article or through a specified correspondence delivery operator as prescribed in paragraph (9) of that Article.

②When a written notification has been received pursuant to the provisions of the preceding paragraph, the notification is deemed to have been submitted at the time of the notifying person's death.

①A notifying person may request a certificate of acceptance or non-acceptance of a notification.

②A interested person may request to inspect a written notification or any other document that the mayor of a municipality has received, or may request a certificate of the particulars stated in that document, only when there are special reasons for doing so.

③The provisions of Article 10, paragraph (3) and Article 10-3 apply mutatis mutandis to the cases referred to in the preceding two paragraphs.

①A notification of birth must be submitted within 14 days (or if the birth took place abroad, within three months).

②The following particulars must be entered in the written notification:

③If a doctor, midwife, or any other person attended the birth, the written notification must be accompanied by a birth certificate that one of them in the order of doctor, midwife, and the other person has prepared in the manner provided for by Order of Ministry of Justice and the Ministry of Health, Labour and Welfare; provided, however, that this does not apply if there are unavoidable grounds for not doing so.

①For the given name of a child, characters that are simple and in common use must be used.

②The scope of characters that are simple and in common use is defined by Ministry of Justice Order.

①A notification of birth may be submitted in the locality of birth.

②If the birth takes place within a train or aboard any other mode of transportation (excluding a ship; the same applies below), a notification of birth may be submitted in the locality in which the mother exited that mode of transportation, and if the birth takes place within a ship where no logbook is kept, a notification of birth may be submitted in the locality at which the ship first enters port.

①A notification of the birth of a child born in wedlock must be submitted by the father or mother, and if the parents were divorced before the birth of the child, it must be submitted by the mother.

②A notification of the birth of a child born out of wedlock must be submitted by the mother.

③If the person who is required to submit the notification pursuant to the provisions of the preceding two paragraphs is unable to submit the notification, one of the following persons must do so in accordance with the following order:

④If the person who is required to submit the notification pursuant to the provisions of paragraph (1) or (2) is unable to do so, a legal representative other than them may also submit the notification.

A notification of birth must be submitted even if an action to rebut the presumption of legitimacy has been filed.

①If the court is to determine the paternity of a child pursuant to the provisions of Article 773 of the Civil Code, the notification of birth must be submitted by the mother. In this case, she must enter the grounds that paternity has not yet been ascertained in the written notification.

②The provisions of Article 52, paragraphs (3) and (4) apply mutatis mutandis to the case referred to in the preceding paragraph.

①If a birth takes place at sea, the master of the ship must state the particulars listed in Article 49, paragraph (2) in a logbook and affix their signature to it, within 24 hours.

②If the ship arrives at a port in Japan after the procedure referred to in the preceding paragraph has been performed, the master must send a transcript of the portion of the logbook concerning the birth to the mayor of a municipality in which that port is located, without delay.

③If the ship arrives at a port in a foreign country, the master must send a transcript of the portion of the logbook concerning the birth to the Japanese ambassador, minister, or consul stationed in that country without delay, and the ambassador, minister, or consul must send it to the mayor of a municipality in the locality of the registered domicile via the Minister of Foreign Affairs without delay.

If a birth has taken place in a hospital, penal institution, or any other public institution, and both parents are unable to submit the notification, the head or manager of that public institution must submit the notification.

①A police official who has found an abandoned child or has received a report that an abandoned child was found must inform the mayor of a municipality to that effect within 24 hours.

②When having received information as set forth in the preceding paragraph, the mayor of a municipality must give a name to the child and the kana characters indicating the pronunciation of the name, and designate their registered domicile, and must enter in a record any belongings of that child, the place, the date and time, and other circumstances concerning how the child was found, the kana characters indicating the pronunciation of their name, their gender, the presumed date of birth, and the registered domicile. The record in question is deemed to be a written notification.

If the abandoned child dies before the procedures prescribed in paragraph (1) of the preceding Article have been performed, a notification of death must be submitted and the relevant procedures must be carried out at the same time.

The father or mother who takes custody of an abandoned child must submit a notification of birth and apply for a correction of their family register within one month from the day on which they take custody of the child.

A person who seeks to acknowledge parentage of a child must state this and the following particulars in a written notification and submit it:

If a person acknowledges parentage of an unborn child, they must state this and the name and registered domicile of the mother in a written notification and submit it in the locality of the registered domicile of the mother.

If parents submit a notification for the birth of a child born in wedlock with regard to a child who is to acquire the status of a child born in wedlock pursuant to the provisions of Article 789, paragraph (2) of the Civil Code, the notification has the effect of a notification acknowledging parentage.

①When a judicial decision of filiation has become final and binding, the person who filed the action must submit a notification to that effect within ten days from the day on which the judicial decision became final and binding, together with a transcript of the judicial decision. The date that the judicial decision became final and binding must be entered in the written notification.

②If the person who filed the action does not submit a notification under the preceding paragraph, the other party of the case may submit a notification to the effect that a judicial decision of filiation has become final and binding, together with a transcript of the judicial decision. In this case, the provisions of the second sentence of the relevant paragraph apply mutatis mutandis.

In the case of an acknowledgment of parentage made in a will, the executor must submit a notification acknowledging parentage pursuant to the provisions of Articles 60 through 61 within ten days from the day on which they assumed the role, together with a copy of the will in which the acknowledgment is made.

If an acknowledged child is stillborn, the person who has the duty to submit a notification of birth must submit a notification to that effect within 14 days from the day on which they became aware of that fact, in the locality in which the notification acknowledging parentage was submitted; provided, however, that an executor must submit this notification if they have submitted the notification set forth in the preceding Article.

A person who seeks to adopt must submit a notification to that effect.

If consent is given for adoption pursuant to the provisions of Article 797 of the Civil Code, the notification of adoption must be submitted by the person who gives consent.

The provisions of Article 63, paragraph (1) apply mutatis mutandis to the case in which a judicial decision of adoption has become final and binding.