AB 2484 California Assembly · 2025-2026 Regular Session

San Diego Metropolitan Transit System: transactions and use tax: voter initiatives.

Summary

The Mills-Deddeh Transit Development Act establishes the San Diego Metropolitan Transit Development Board, also known as the San Diego Metropolitan Transit System (MTS) , governed by a 15-member board with specified powers and duties related to the operation of public transit services in the southern portion of the County of San Diego. The act authorizes MTS to impose a transactions and use tax of up to 0.5% for public transit purposes within its jurisdiction, or a portion of its jurisdiction, pursuant to the Transactions and Use Tax Law and subject to voter approval and various other requirements. This bill would also authorize those taxes to be imposed by a qualified voter initiative. To the extent that the bill would impose additional duties on a county elections official, the bill would impose a state-mandated local program. The Transactions and Use Tax Law limits the combined rate of all taxes that may be imposed in accordance with that law in any county to 2%. This bill would prohibit the tax rate of 0.5% described above that may be imposed by MTS or a qualified voter initiative from being considered for purposes of the combined rate limit under the Transactions and Use Tax Law. The California Constitution requires the state to reimburse local agencies and school districts for certain costs mandated by the state. Statutory provisions establish procedures for making that reimbursement. This bill would provide that, if the Commission on State Mandates determines that the bill contains costs mandated by the state, reimbursement for those costs shall be made pursuant to the statutory provisions noted above.

Bill status passed both 4 of 5 stages cleared

Introduction

Feb 2026

Committee Review

Aug 2026

Assembly Passage

May 2026

Senate Passage

Aug 2026

Governor

Introduced Feb 20, 2026 Last action Aug 27, 2026

Maddy AI version diff · 4 comparisons

What changed between versions

08/30/26 - Enrolled → AB2484 · 1 edit

MINOR

This diff reflects a formatting and presentation change only. The enrolled legislative document (with traditional headers, signatures, and page numbering) has been replaced by a web page rendering of the same bill text. No substantive policy language was added, removed, or modified.

TECHNICAL

The bill was reformatted from a traditional enrolled legislative document (with chapter heading, clerk signatures, and page numbers) into a web-based display format with navigation menus, metadata panels, and status history. The actual statutory text of Sections 1 through 7 is unchanged.

Floor votes · Senate Aug 26, 2026 · Assembly May 27, 2026

How they voted

30–10

Passed

Total votes 40

Aug 26, 2026

D Democratic30

30 Yea

100% Yea

R Republican10

10 Nay

100% Nay

Vote distribution

All Yea All Nay Mixed No data

Full legislative history

Actions timeline

Total actions

Key actions

Committee

Amendments

Aug 27, 2026

Lower · Passed

In Assembly. Ordered to Engrossing and Enrolling.

lower

Aug 26, 2026

Upper · Passed

Read third time. Passed. Ordered to the Assembly. (Ayes 29. Noes 10.).

upper

Aug 3, 2026

Upper · Passed

From committee: Be ordered to second reading pursuant to Senate Rule 28.8.

upper

Jun 24, 2026

Upper · Passed

From committee: Do pass and re-refer to Com. on APPR. (Ayes 8. Noes 4.) (June 23). Re-referred to Com. on APPR.

upper

Jun 16, 2026

Upper · Passed

From committee: Do pass and re-refer to Com. on TRANS. (Ayes 4. Noes 0.) (June 16). Re-referred to Com. on TRANS.

upper

Jun 10, 2026

Committee

Referred to Coms. on E. & C.A. and TRANS.

upper

May 27, 2026

Assembly · Passed

Assembly Vote: pass (45-21-13)

assembly

May 26, 2026

Lower · Passed

Read third time. Passed. Ordered to the Senate. (Ayes 46. Noes 21.)

lower

May 18, 2026

Lower · Passed

Read second time and amended. Ordered returned to second reading.

lower

May 14, 2026

Introduced

From committee: Amend, and do pass as amended. (Ayes 11. Noes 4.) (May 14).

lower

May 6, 2026

Committee

In committee: Set, first hearing. Referred to APPR. suspense file.

lower

Apr 23, 2026

Lower · Passed

From committee: Do pass and re-refer to Com. on APPR. (Ayes 8. Noes 2.) (April 22). Re-referred to Com. on APPR.

lower

Apr 15, 2026

Lower · Passed

From committee: Do pass and re-refer to Com. on L. GOV. (Ayes 6. Noes 2.) (April 15). Re-referred to Com. on L. GOV.

lower

Mar 25, 2026

Committee

Re-referred to Com. on ELECTIONS.

lower

Mar 24, 2026

Introduced

From committee chair, with author's amendments: Amend, and re-refer to Com. on ELECTIONS. Read second time and amended.

lower

Mar 16, 2026

Committee

Referred to Coms. on ELECTIONS and L. GOV.

lower

Feb 21, 2026

Lower · Passed

From printer. May be heard in committee March 23.

lower

1 primary · 2 co-sponsors