IL SB1270

Requires election authorities to automatically register voters within 90 days of receiving information from the National Change of Address database, with voters able to reject the change through mailings to their old and new addresses.

Changes voter registration verification timeline from "at least once every 2 years" to "after a consolidated election in an odd-numbered year but before the first day of candidate circulation for the following primary election in an even-numbered year," with county clerks and election boards required to certify completion within 30 days.

Mandates election authorities with public websites publish vote by mail processing procedures at least 120 days before general elections, primary elections, or consolidated elections.

Requires State Board of Elections to establish training materials and guidelines for judges of elections that must be incorporated into training courses by election authorities.

Establishes audit procedures for vote by mail ballots received after election day, with State Board auditing 5% of election authorities using random selection; requires political party chairs to receive prior written notice of audit selection procedures.

Requires judges of elections to file written affidavits explaining any delays exceeding 5 hours in delivering tally sheets to county clerks, with affidavits made available to the public on the election authority's website.