One of the many initiatives on California's Nov. 3 ballot, Proposition 39, would require voters to present identification.

According to the Voter Information Guide, published by the California Secretary of State's Office, the proposition would amend the state constitution to prohibit citizens from voting unless they present government-issued ID. Those voting by mail would have to write the last four digits of their Social Security number or driver’s license number on their vote-by-mail envelope.

Voters would have to designate which identification number they are using, then actually use that number. If a voter indicates they used their driver’s license number but instead wrote the last four digits of their Social Security number, their ballot wouldn’t count, according to the voter information guide.

The proposition would also require elections officials to annually report the percentage of each county’s voters whose citizenship officials verified.

“It’s a practical way to update how we run elections in California," Sen. Suzette Martinez Valladares, R-Lancaster, told The Center Square on Thursday. "Requiring a standard government-issued ID to vote is not moving backward. It’s a step toward a more modern and open system."

The ballot measure also ensures a free state ID to any eligible voter who doesn't have one, Valladares added.

"Prop. 39 makes sure no one is left out," Valladares said.

Sen. Tony Strickland, R-Huntington Beach, and another state lawmaker, Assemblymember Carl DeMaio, R-San Diego, who were both early backers of the measure, were unavailable for interviews Thursday for this story.

But Strickland previously told The Center Square, “I just remind everybody that 36 other states have this as part of their laws. Every state that has had this actually had higher voter participation, not lower.”

All but one lawmaker on election committees in the California Legislature declined to respond to The Center Square on Thursday or did not return calls or emails.

Sen. Steven Choi, R-Irvine and vice chair of the Senate Elections and Constitutional Amendments Committee, told The Center Square via email on Thursday that as the author of election integrity legislation, he approves of the measure.

“I fully support putting this important measure to the voters so that they can decide if they want secure elections in California," Choi said. "I believe the biggest impact you will see if Proposition 39 is successful will be building confidence in elections, across the board. With that confidence, we will likely see increased voter participation. I strongly support Proposition 39 and urge voters to do the same. “

Roughly 1.02 million voters signed the petition to place the measure on the ballot, well over the required 874,641 signatures, The Center Square previously reported.

Rusty Hicks, chair of the California Democratic Party, warned the initiative would make voting more difficult in California.

“Prop 39 is a Trump-backed attack on Californians’ fundamental right to vote,” Hicks said in an email to The Center Square. “It would make voting harder, put voters’ personal information at risk, force taxpayers to spend hundreds of millions of dollars and delay election results. California Democrats are united in opposition to Prop 39, and will ensure it ends up in the massive dumpster-fire with all the other failed MAGA efforts in this election.”

The California Republican Party declined to comment for this story.