When a person has newly set an address within the area of a municipality (including a special ward; the same applies hereinafter), or there is any other person who is to be newly recorded in the basic resident register of that municipality, the mayor of the municipality must, except in the case provided for in the following paragraph, prepare a certificate of residence for that person.
市町村長は、新たに市町村(特別区を含む。以下同じ。)の区域内に住所を定めた者その他新たにその市町村の住民基本台帳に記録されるべき者があるときは、次項に定める場合を除き、その者の住民票を作成しなければならない。
When, after preparing a certificate of residence by household unit for a household, there is a person who is to be newly recorded in the basic resident register of that municipality and who has come to belong to that household (including a person who already belonged to that household and has newly become subject to the application of the Act), the mayor of the municipality must make an entry concerning that person in that certificate of residence (or, for a certificate of residence prepared by means of a magnetic disk pursuant to the provisions of Article 6, paragraph (3) of the Act, a record; the same applies hereinafter).
特別区
都の区のことです(地方自治法第二百八十一条第一項)。今ある特別区は、東京都の二十三区だけです。特別区は、市町村と同じく住民に身近な地方公共団体(基礎的な地方公共団体)で、都が特別区のある区域全体でまとめて行う仕事を除き、ふつうは市町村が行う仕事を行います(同法第二百八十一条の二第二項)。市の仕事について定めた法令の規定は、その仕事を特別区が行う場合には特別区にも当てはまります(同法第二百八十一条第二項・第二百八十三条第二項)。そのまま当てはめにくいときは、政令で特別の定めを置くことができます(同法第二百八十三条第三項)。
地方自治法第281条・第281条の2・第283条、Wikipedia「特別区」を参考にAIが作成。