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States with initiated statutes only
Initiated |
• Initiated constitutional amendment |
• Initiated state statute |
• Veto referendum |
Legislative |
• Legislative constitutional amendment |
• Legislative state statute |
• Legislative bond issue |
• Advisory question |
Other |
• Automatic ballot referral |
• Commission-referred measure |
• Convention-referred amendment |
Select a state from the menu below to learn more about that state's types of ballot measures. |
States that do not allow initiated constitutional amendments but do allow initiated statutes or veto referendum include:
Chart and map of powers in each state
The map below shows which states allow initiated constitutional amendments, initiated state statutes, and veto referendums:
There are 26 states that provide citizens with the power of initiative, referendum, or both. The following table shows the type of citizen-initiated ballot measures in each of those states. The table also provides the signature requirements for each type of measure for the 2025-2026 election cycle.
States that provide for types of citizen-initiated measures and current signature requirements | |||||||
---|---|---|---|---|---|---|---|
State | Constitutional | Signatures | Statute | Signatures | Referendum | Signatures | |
Alaska | No | N/A | Yes | 34,098 | Yes | 34,098 | |
Arizona | Yes | 383,923 | Yes | 255,949 | Yes | 127,975 | |
Arkansas | Yes | 90,704 | Yes | 72,563 | Yes | 54,422 | |
California | Yes | 874,641 | Yes | 546,651 | Yes | 546,651 | |
Colorado | Yes | 124,238 | Yes | 124,238 | Yes | 124,238 | |
Florida | Yes | 880,062 | No | N/A | No | N/A | |
Idaho | No | N/A | Yes | 70,725 | Yes | 70,725 | |
Illinois | Yes | 328,371 | No | N/A | No | N/A | |
Maine | No | N/A | Yes | 67,682 | Yes | 67,682 | |
Maryland | No | N/A | No | N/A | Yes | 60,157 | |
Massachusetts | Yes | 74,490 | Yes | 74,490 | Yes | 37,245[1] | |
Michigan | Yes | 446,198 | Yes | 356,958 | Yes | 223,099 | |
Mississippi[2] | Yes | 106,190 | No | N/A | No | N/A | |
Missouri | Yes | 170,215[3] | Yes | 106,384[3] | Yes | 106,384[3] | |
Montana | Yes | 60,241 | Yes | 30,121 | Yes | 30,121 | |
Nebraska | Yes | 126,838 | Yes | 88,787 | Yes | 63,419[4] | |
New Mexico | No | N/A | No | N/A | Yes | 92,829[5] | |
Nevada | Yes | 102,362 | Yes | 135,561 | Yes | 102,362 | |
North Dakota | Yes | 31,164 | Yes | 15,582 | Yes | 15,582 | |
Ohio | Yes | 413,487 | Yes | 248,092[6] | Yes | 248,093 | |
Oklahoma | Yes | 172,993 | Yes | 92,263 | Yes | 57,664 | |
Oregon | Yes | 156,231 | Yes | 117,173 | Yes | 78,115 | |
South Dakota | Yes | 35,017 | Yes | 17,508 | Yes | 17,508 | |
Utah | No | N/A | Yes | 140,748 | Yes | 140,748 | |
Washington | No | N/A | Yes | 308,911 | Yes | 154,456 | |
Wyoming | No | N/A | Yes | 40,669 | Yes | 40,669 |
See also
- States that allow initiated constitutional amendments
- States with referendum only
- States with initiated statutes only
- States without initiative or referendum
- List of ballot measures by state
- Amending state constitutions
- Laws governing ballot measures

Foot notes
- ↑ This was the number of signatures required to put a targeted law before voters. To suspend the enactment of the targeted law until the election, the requirement was 49,660 valid signatures.
- ↑ On May 14, 2021, the Mississippi Supreme Court issued a 6-3 decision stating that it is impossible for any petition to meet the state's distribution requirement and has been impossible since congressional reapportionment in 2001. The six justices wrote, "... Whether with intent, by oversight, or for some other reason, the drafters of [the constitutional signature distribution requirement] wrote a ballot initiative process that cannot work in a world where Mississippi has fewer than five representatives in Congress. To work in today’s reality, it will need amending—something that lies beyond the power of the Supreme Court."
- ↑ 3.0 3.1 3.2 This is the minimum required if signatures are collected in the congressional districts with the lowest numbers of votes cast in 2020. The signature requirement varies based on what districts are targeted for signature collection.
- ↑ To suspend the enactment of the targeted law until the election, the requirement is 126,838 valid signatures.
- ↑ This is the number of signatures required to put a targeted law before voters. To suspend the enactment of the targeted law until the election, the requirement is 232,072 valid signatures.
- ↑ This is the requirement for two rounds of signatures to get an initiated statute on the ballot; half the number of signatures—124,046—is required to place the initiative before the legislature.
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