§ 17.Definitions
Preliminary Provisions · Last amended 2017 · Last verified July 28, 2026
Full Text of § 17
Plain-English Summary
Section 17 does two jobs. Subdivision (a) sets grammatical defaults that apply throughout the code: the present tense reaches the future, the masculine gender reaches the feminine and neuter, and the singular reaches the plural (and back again). Those conventions keep the rest of the code from having to spell out every gender and number combination.
Subdivision (b) then defines sixteen terms the code uses often. Some are ordinary words given a broader legal reach — “county” includes “city and county,” “person” includes a corporation, “sheriff” includes marshal, “state” includes the District of Columbia and the territories. Others track modern practice, like “electronic signature,” and “spouse,” which the section extends to a registered domestic partner under Family Code Section 297.5. A few definitions nest further terms inside them: “oath” includes “depose” and “testify,” and “property” splits into “personal property” and “real property.”
Because Section 16 tells readers to give a defined term its Section 17 meaning wherever it appears, this section quietly shapes how dozens of other provisions in the code are read.
Official Comment
The following official comments are published by the California Law Revision Commission (and, for a few older sections, its predecessor Code Commissioners) alongside the statute itself — not commentary from this site.
2002 Law Revision Commission Comment. Section 17 is amended to reflect unification of the municipal and superior courts pursuant to Article VI, Section 5(e), of the California Constitution. See Section 38 (judicial district). Cf. Gov’t Code § (preservation of judicial districts for purpose of publication).
Frequently Asked Questions
What does “person” mean under the California Code of Civil Procedure?
Section 17(b)(6) defines “person” to include a corporation as well as a natural person.
Does “spouse” include a registered domestic partner?
Yes. Section 17(b)(12) extends “spouse” to a registered domestic partner, as required by Family Code Section 297.5.
How does the code define “electronic signature”?
Section 17(b)(3) defines it as an electronic sound, symbol, or process attached to or logically associated with an electronic record and executed or adopted with the intent to sign it.
Does “month” mean a 30-day period under the code?
No. Section 17(b)(4) defines “month” as a calendar month, unless a provision expresses it differently.
Amendment History
Enacted 1872. Amended Code Amdts 1873–74 ch 383 § 3; Stats 1903 ch 123 § 1; Stats 1933 ch 742 § 1; Stats 1951 ch 1737 § 1; Stats 1996 ch 872 § 5 (AB 3472); Stats 2002 ch 784 § 21 (SB 1316); Stats 2003 ch 62 § 21 (SB 600); Stats 2015 ch 32 § 1 (AB 432), effective January 1, 2016; Stats 2016 ch 50 § 13 (SB 1005), effective January 1, 2017.