California’s Proposition 40 was a $2.6 billion general obligation bond measure that voters approved on March 5, 2002. Its official name was the California Clean Water, Clean Air, Safe Neighborhood Parks, and Coastal Protection Act of 2002, and it directed money to parks, water quality, wildlife habitat, open space, and historical preservation.1Legislative Analyst’s Office. March 2002 Proposition 40 – California Clean Water, Clean Air, Safe Neighborhood Parks, and Coastal Protection Act of 2002 It passed with 56.8 percent of the vote. Counting interest, the total cost to taxpayers was estimated at about $4.3 billion over the life of the bonds.2California State Parks. 2002 Resources Bond Act
Which Proposition 40 You’re Looking At
California reuses proposition numbers each election cycle, so the date matters. The Proposition 40 described here is the 2002 resources bond. A different measure also labeled Proposition 40 appeared on the November 6, 1984, ballot; that one was a campaign finance initiative that would have capped contributions to state candidates and created a limited public funding mechanism. Voters rejected it, with about 64 percent voting no. The two measures have nothing to do with each other.
What the Bond Funded
The act is codified in Chapter 1.696 of Division 5 of the Public Resources Code, starting at Section 5096.600.3California Water Boards. California Public Resources Code Division 5 Chapter 1.696 – The California Clean Water, Clean Air, Safe Neighborhood Parks, and Coastal Protection Act of 2002 Its stated priorities were cleaning up polluted rivers, lakes, streams, and coastal areas; preserving open space and farmland at risk from development; protecting wildlife habitat; improving neighborhood and state parks; and restoring historical and cultural sites. Air quality improvements were included as well, though they received a small share of the total.
Section 5096.610 divided the $2.6 billion into four spending categories:3California Water Boards. California Public Resources Code Division 5 Chapter 1.696 – The California Clean Water, Clean Air, Safe Neighborhood Parks, and Coastal Protection Act of 2002
- $1.275 billion for land, air, and water conservation, including wildlife habitat, the state conservancies, clean beaches, and water quality programs. This was the largest category.
- $832.5 million in local park grants to cities, counties, and park districts, distributed as both per-capita formula grants and competitive grants.
- $267.5 million for acquiring, restoring, and preserving historical and cultural sites.
- $225 million for acquiring and developing the state park system.
These figures don’t total exactly $2.6 billion because roughly $52 million was reserved for bond issuance costs and statewide administrative expenses.4California State Parks. Proposition 40 Allocation Balance Report
Inside the conservation category, the Wildlife Conservation Board received $300 million for habitat acquisition and protection. About $445 million went to eight state conservancies, with the State Coastal Conservancy receiving the largest share at roughly $200 million. Water programs received $375 million under Section 5096.650(c), with $300 million aimed at clean beaches, watershed protection, and water quality, and $75 million for river parkway acquisition and urban stream restoration.5California Natural Resources Agency. Summary of Programs in Proposition 40
How a General Obligation Bond Works
When voters approve a bond act like Proposition 40, they authorize the state to borrow money by selling bonds to investors. The state receives cash up front and then repays both principal and interest over many years from the General Fund, its main operating account.6California Department of General Services. State Administrative Manual – General Obligation Bonds The Legislative Analyst’s Office estimated that at a 5 percent interest rate, Proposition 40 would cost about $4.3 billion in total, with roughly $1.7 billion of that going to interest payments.1Legislative Analyst’s Office. March 2002 Proposition 40 – California Clean Water, Clean Air, Safe Neighborhood Parks, and Coastal Protection Act of 2002 Bond measures let the state pay for large projects that no single year’s budget could absorb, but taxpayers carry the cost for decades.
Who Ran the Programs
No single agency administered the whole bond. The Department of Parks and Recreation handled the local park grants and the state park acquisition money. The Wildlife Conservation Board managed its $300 million independently. The State Water Resources Control Board and the regional water quality boards administered the water programs. Each of the eight state conservancies ran its own allocation. For the historical and cultural portion, the California State Library and the Department of Parks and Recreation split oversight.5California Natural Resources Agency. Summary of Programs in Proposition 40 In practice that meant dozens of separate grant programs, each with its own application process and timeline.
Where the Money Stands Today
As of mid-2025, nearly all of the Proposition 40 money has been appropriated and spent. The Department of Parks and Recreation’s allocation balance report shows enacted appropriations of about $2.554 billion against a net available amount of $2.548 billion, leaving only negligible balances in most categories.4California State Parks. Proposition 40 Allocation Balance Report The land, air, and water conservation category even shows a small negative balance, the result of accounting technicalities in how the State Controller’s Office tracks continuously appropriated funds. For practical purposes the bond is fully committed. California continues to make debt service payments on the outstanding bonds from the General Fund, as it does for all general obligation bonds still on the books.7Legislative Analyst’s Office. Infrastructure Funding