Any town clerk may delegate his duty to check the names of signers with names of electors on the registry list pursuant to section 9-453k to the registrars of voters in his town, if the registrars consent, and the registrars shall complete the required certifications with respect thereto on the petition, provided the registrars shall execute a receipt for such pages upon receipt thereof stating the number of pages and provided such checking of names by the registrars shall take place in the office of the town clerk or in the office of the registrars of voters if they have an office. After making the required certifications, the registrars shall deliver the petition pages to the town clerk.