Legislative Information

California Legislative Process

The legislative process of government is a procedure by which bills are considered, and laws are enacted by the California State Legislature (Legislature). The Legislature is made up of two houses: the Senate and the Assembly. There are 40 Senators and 80 Assemblymembers. The Legislature maintains a legislative calendar governing the introduction and processing of the legislative measures during its two-year regular session.


All legislation begins as an idea or concept. Ideas and concepts can come from a variety of sources including advocacy groups, associations, legislators, or constituents.


A legislator sends the idea for the bill to the Office of the Legislative Counsel, where it is drafted into bill form. The draft of the bill is returned to the legislator for introduction.

First Reading/Introduction:

A bill is introduced or read the first time when the bill number, the name of the author, and the descriptive title of the bill are read on the floor of the house. The bill is then sent to the Office of State Publishing. No bill except the Budget Bill may be acted upon until 30 days have passed from the date of its introduction.

Committee Hearings:

After introduction, a bill goes to the rules committee of the house, where it is assigned to the appropriate policy committee for its first hearing. Bills are assigned to policy committees according to subject area. Bills that require the expenditure of funds must also be heard in the fiscal committees.

During the committee hearing the author presents the bill to the committee, and testimony may be heard in support or opposition to the bill. The committee then votes on whether to pass the bill out of committee, or that it be passed as amended. Bills may be amended several times. It takes a majority vote of the committee membership for a bill to be passed and sent to the next committee or to the floor.

Each house maintains a schedule of legislative committee hearings. Prior to a bill’s hearing, a bill analysis is prepared that explains the intended effect of the bill on current law, together with background information.

Second and Third Reading:

Bills passed by committees are read a second time on the floor in the house of origin and then assigned to third reading. Bill analyses are also prepared prior to third reading. When a bill is read the third time it is presented by the author and voted on by a roll call vote. Bills that require an appropriation, or that take effect immediately, ordinarily require 27 votes in the Senate and 54 votes in the Assembly to be passed. Other bills generally require 21 votes in the Senate and 41 votes in the Assembly. If a bill is defeated, the legislator may seek reconsideration and another vote.

Other House:

Once the bill has been approved by the house of origin it proceeds to the other house where the procedure described above is repeated.

Resolution of Differences:

If a bill is amended in the second house, it must go back to the house of origin for concurrence, meaning agreement on those amendments. If the house of origin does not concur in those amendments, the bill is referred to a two-house conference committee to resolve the differences. Three members of the committee are from the Senate and three are from the Assembly. If a compromise is reached, the bill is returned to both houses for a vote.


If both houses approve a bill, it goes to the Governor. The Governor has three choices: sign the bill into law, allow it to become law without his or her signature, or veto it. A governor’s veto can be overridden by a two-thirds vote in both houses. Most enacted bills go into effect on the first day of January of the next year. Urgency bills, and certain other measures, take effect immediately after they are enacted into law.

California Law:

Each bill that is passed by the Legislature and approved by the Governor is assigned a chapter number by the Secretary of State. These chaptered bills are statutes, and ordinarily become part of the California Codes. The California Codes are a comprehensive collection of laws grouped by subject matter. The California Constitution sets forth the fundamental laws by which the State of California is governed. All amendments to the California Constitution come about because of constitutional amendments approved by the voters at a statewide election.

California State Assembly

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California State Senate

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Governor of California

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State of California Legislative Information

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Legislative Life Cycle

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Glossary of Legislative Terms

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Legislative Analyst’s Office

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California Code of Regulations

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