Pima County, Arizona, Proposition 418, Regional Transportation Plan Measure (March 2026)

Pima County Proposition 418
Election date March 10, 2026
Topic Local transportation policy
Status Approved
Type Referral

Pima County Proposition 418 was on the ballot as a referral in Pima County on March 10, 2026. It was approved.

A "yes" vote supported approving the proposed $2.67 billion regional transportation plan, which includes corridor and roadway improvement projects, pathway and sidewalk projects, and public transportation improvements.

A "no" vote opposed approving the proposed $2.67 billion regional transportation plan, which includes corridor and roadway improvement projects, pathway and sidewalk projects, and public transportation improvements.

A simple majority was required to approve the measure.

Election results

Pima County Proposition 418
Result		Votes	Percentage
Yes		125,362	60.42%
No		82,128	39.58%

Source

Text of measure

Ballot title

The ballot title for Proposition 418 was as follows:

“

Do you approve the regional transportation plan for Pima County? A “YES” vote indicates your approval of the proposed regional transportation plan as developed by the Regional Transportation Authority of Pima County and described in the election materials. A “NO” vote indicates your disapproval of the proposed regional transportation plan.

”

Full Text

The full text of this measure is available here.

Support

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Opposition

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Path to the ballot

This measure was put on the ballot through a vote of the governing body of Pima County.

How to cast a vote

See also: Voting in Arizona

See below to learn more about current voter registration rules, identification requirements, and poll times in Arizona.

How to vote in Arizona

Poll times

In Arizona, all polling places are open from 6:00 a.m. to 7:00 p.m. local time. Anyone in line when the polls close must be allowed to vote.

Registration

Check your voter registration status here.

To vote in Arizona, one must be a citizen of the United States and a resident of the county listed on the person's registration. A voter must be 18 years or older on or before Election Day. Arizona also requires voters to provide documentary proof of citizenship to vote for state and local elections

To be eligible to vote in an election, one must register at least 29 days before the election. Individuals can register online, in person at the county recorder's office, or by mail.

Automatic registration

See also: Automatic voter registration

Arizona does not practice automatic voter registration.

Online registration

See also: Online voter registration

Arizona has implemented an online voter registration system. Residents can register to vote by visiting this website.

Same-day registration

See also: Same-day voter registration

Arizona does not allow same-day voter registration.

Residency requirements

Arizona law requires 29 days of residency in the state before a person may vote.

Verification of citizenship

See also: Laws permitting noncitizens to vote in the United States

Arizona requires voters to submit proof of citizenship with their voter registration application to vote in state and local elections. According to the Arizona Secretary of State's website: "A registrant who attests to being a citizen but fails to provide proof of citizenship and whose citizenship is not otherwise verified will be eligible to vote only in federal elections (known as being a "federal only" voter)." Accepted proof of citizenship include:

• An Arizona Driver's License/Identification Number
• Indian Census Number, Bureau of Indian Affairs Card Number, Tribal Treaty Card Number, or Tribal Enrollment Number
• A photocopy of U.S. naturalization documents
• A photocopy of a birth certificate and supporting legal documentation (i.e., marriage certificate) if the name on the birth certificate is not the same as your current legal name.
• A photocopy of a U.S. passport.
• A photocopy of a Tribal Certificate of Indian Blood or Bureau of Indian Affairs Affidavit of Birth.

Voters who move to a new county must provide proof of citizenship when they re-register to vote.

All 49 states with voter registration systems require applicants to declare that they are U.S. citizens in order to register to vote in state and federal elections, under penalty of perjury or other punishment. Eight states — Alabama, Arizona, Kansas, Louisiana, New Hampshire, South Dakota, Utah, and Wyoming — have laws requiring individuals provide proof of citizenship at the time of voter registration, whether in effect or not. Three states, Florida, Georgia and Mississippi, require a person provide proof of citizenship if their citizenship status cannot be verified by other means. One state, Ohio, requires proof of citizenship only when registering to vote at a Bureau of Motor Vehicles facility. In three states — California, Maryland, and Vermont — at least one local jurisdiction allows noncitizens to vote in some local elections. Noncitizens registering to vote in those elections must complete a voter registration application provided by the local jurisdiction and are not eligible to register as state or federal voters.

Verifying your registration

The Arizona Voter Information Portal, run by the Arizona Secretary of State's office, allows residents to check their voter registration status online.

Voter ID requirements

Arizona requires voters to present photo identification or two forms of non-photo identification while voting.

The following were accepted forms of identification as of November 2025: Click here for the Arizona Secretary of State's page on accepted ID to ensure you have the most current information.

“

When you arrive to vote at the polls on Election Day you will announce your name and place of residence to the election official and present one form of identification from List #1 or two different forms of identification from List #2 or 3 ... Valid identification is also required prior to receiving a ballot at any in-person early voting location or emergency vote center or from a special election board. #1: Sufficient Photo ID including name and address (One Required) Valid Arizona driver license Valid Arizona non-operating identification card Tribal enrollment card or other form of tribal identification Valid United States federal, state, or local government-issued identification Please note: Members of federally-recognized tribes are not required to have an address or photo on their tribal identification in order to cast a provisional ballot. List #2 - Sufficient ID without a photograph that bears the name and address (Two Required) Utility bill of the elector that is dated within 90 days of the date of the election. A utility bill may be for electric, gas, water, solid waste, sewer, telephone, cellular phone, or cable television Bank or credit union statement that is dated within 90 days of the date of the election Valid Arizona Vehicle Registration Indian census card Property tax statement of the elector's residence Tribal enrollment card or other form of tribal identification Arizona vehicle insurance card Recorder's Certificate Valid United States federal, state, or local government-issued identification, including a voter registration card issued by the County Recorder Any mailing to the elector marked "Official Election Material" List #3 - Mix & Match from Lists #1 & #2 (Two Required) Any valid photo identification from List 1 in which the address does not reasonably match the precinct register accompanied by a non-photo identification from List 2 in which the address does reasonably match the precinct register U.S. Passport without address and one valid item from List 2 U.S. Military identification without address and one valid item from List 2

”

See also

Local measures

• Local measures in 2026
• Local transportation ballot measures

Arizona

• Arizona 2026 local measures
• Local ballot measures, Arizona
• Pima County, Arizona

News and analysis

• State and local preemption conflicts
• Measures advancing national agendas